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Miao, Ed. 10 Tsinghua University 11 June 14, 2019 13 Framework for Network Resource Property Description 14 draft-jilongwang-opsawg-cyber-resource-property-00 16 Abstract 18 This memo discusses and defines a framework for cyberspace resource 19 property description, which is suitable for the unified 20 classification organization and description of multi-source network 21 resource measurement information. Now, there is no unified 22 description framework for network resource property. The objective 23 of this draft is to establish a general model based on cyberspace 24 identification reference, and implement the reuse of survey data in 25 different users and occasions. Then discuss the basic methodology 26 and propose a less mature framework for further complement and 27 improvement 29 Status of This Memo 31 This Internet-Draft is submitted in full conformance with the 32 provisions of BCP 78 and BCP 79. 34 Internet-Drafts are working documents of the Internet Engineering 35 Task Force (IETF). Note that other groups may also distribute 36 working documents as Internet-Drafts. The list of current Internet- 37 Drafts is at https://datatracker.ietf.org/drafts/current/. 39 Internet-Drafts are draft documents valid for a maximum of six months 40 and may be updated, replaced, or obsoleted by other documents at any 41 time. It is inappropriate to use Internet-Drafts as reference 42 material or to cite them other than as "work in progress." 44 This Internet-Draft will expire on December 16, 2019. 46 Copyright Notice 48 Copyright (c) 2019 IETF Trust and the persons identified as the 49 document authors. All rights reserved. 51 This document is subject to BCP 78 and the IETF Trust's Legal 52 Provisions Relating to IETF Documents 53 (https://trustee.ietf.org/license-info) in effect on the date of 54 publication of this document. Please review these documents 55 carefully, as they describe your rights and restrictions with respect 56 to this document. Code Components extracted from this document must 57 include Simplified BSD License text as described in Section 4.e of 58 the Trust Legal Provisions and are provided without warranty as 59 described in the Simplified BSD License. 61 Table of Contents 63 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3 64 2. Terminology and Definition . . . . . . . . . . . . . . . . . 4 65 2.1. Terminology and Definition . . . . . . . . . . . . . . . 4 66 2.2. Property . . . . . . . . . . . . . . . . . . . . . . . . 4 67 2.3. Cyberspace Feature . . . . . . . . . . . . . . . . . . . 5 68 3. Symbol and Abbreviation . . . . . . . . . . . . . . . . . . . 5 69 4. Use cases . . . . . . . . . . . . . . . . . . . . . . . . . . 6 70 4.1. Intelligent semantic search . . . . . . . . . . . . . . . 6 71 4.2. Network security situational awareness . . . . . . . . . 6 72 4.3. Network Security . . . . . . . . . . . . . . . . . . . . 7 73 5. Methodology for Network Resources Attribute Description . . . 7 74 5.1. Basic Principles . . . . . . . . . . . . . . . . . . . . 7 75 5.1.1. Scientific principle . . . . . . . . . . . . . . . . 7 76 5.1.2. Systematic principle . . . . . . . . . . . . . . . . 7 77 5.1.3. Consistency principle . . . . . . . . . . . . . . . 7 78 5.1.4. Scalability principle . . . . . . . . . . . . . . . 8 79 5.2. Attribute description framework . . . . . . . . . . . . . 8 80 5.3. Description of association rules for attributes 81 description . . . . . . . . . . . . . . . . . . . . . . . 9 82 5.3.1. Alias relationship . . . . . . . . . . . . . . . . . 9 83 5.3.2. Synonym relationship . . . . . . . . . . . . . . . . 9 84 5.3.3. Ownership relationship . . . . . . . . . . . . . . . 9 85 5.3.4. Aggregation relationship . . . . . . . . . . . . . . 10 86 5.4. Meta property . . . . . . . . . . . . . . . . . . . . . . 10 87 5.4.1. Property type . . . . . . . . . . . . . . . . . . . . 10 88 5.4.2. Property hierarchy . . . . . . . . . . . . . . . . . 10 89 5.4.3. Property range . . . . . . . . . . . . . . . . . . . 10 90 5.4.4. Hash of property value . . . . . . . . . . . . . . . 11 91 5.4.5. Property keyword . . . . . . . . . . . . . . . . . . 11 92 5.4.6. Rate of property change . . . . . . . . . . . . . . . 11 93 5.4.7. Property dependency . . . . . . . . . . . . . . . . . 12 95 6. Framework for Network Resources Attribute Description . . . . 12 96 6.1. Physical domain attributes . . . . . . . . . . . . . . . 12 97 6.1.1. Basic attributes of the entity . . . . . . . . . . . 12 98 6.1.2. Electrical attributes of the entity . . . . . . . . . 15 99 6.1.3. Environmental adaptation attributes of the entity . . 18 100 6.2. logical domain attributes . . . . . . . . . . . . . . . . 19 101 6.2.1. Basic attributes of network devices . . . . . . . . . 20 102 6.2.2. Attributes of network services . . . . . . . . . . . 22 103 6.2.3. Attributes of network performance . . . . . . . . . . 25 104 6.2.4. Attributes of network topology . . . . . . . . . . . 28 105 6.2.5. Attributes of network security . . . . . . . . . . . 33 106 6.3. Cognitive domain attributes . . . . . . . . . . . . . . . 38 107 6.3.1. Cognitive domain attributes . . . . . . . . . . . . . 39 108 6.3.2. Basic attributes of the projected entity . . . . . . 42 109 6.3.3. Behavioral attributes of the virtual subject . . . . 45 110 6.3.4. Emotional attributes of the projected entity . . . . 48 111 6.3.5. Conceptual attributes of the projected entity . . . . 51 112 6.3.6. Attributes of the web service content . . . . . . . . 53 113 6.3.7. Attributes of the data resource content . . . . . . . 55 114 6.4. social domain attributes . . . . . . . . . . . . . . . . 59 115 6.4.1. Attributes of virtual crowd . . . . . . . . . . . . . 59 116 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 62 117 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 62 118 9. Security Considerations . . . . . . . . . . . . . . . . . . . 62 119 10. Normative References . . . . . . . . . . . . . . . . . . . . 62 120 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 63 122 1. Introduction 124 Network space measurement is based on certain methods, techniques and 125 standards. It uses software or hardware tools to test the 126 composition, behavior and development of cyberspace by testing 127 multiple indicators that characterize the state, property and 128 relationships of various layers of cyberspace. The range of 129 measurement can be local to the network space or global. The objects 130 to be measured include the composition, structure, property, 131 behavior, characteristics, laws and trends of the network space. The 132 information obtained by measurement is a kind of typical big data. 133 The content is diverse in format, complex in structure and rapid in 134 change. It is difficult to understand, interact with, and 135 disseminate the information. 137 Given that network measurement data may be used by many people other 138 than producers. It is usually produced by an individual or 139 organization and used by others or organizations. Building a unified 140 entity encoding rule enables people or organizations that are less 141 familiar with each other to better share data and use the data 142 appropriately. As web measurement data producers and users process 143 more and more data, appropriate textual data can provide them with 144 rich information about the data, enabling them to better manage, 145 store, share, update and reuse data products. 147 This memo can support the integration and management of surveying and 148 mapping information across departments, cross-domains, time space, 149 multi-source and multi-scale networks through the unified description 150 of network space property. It can be used as cyberspace management 151 in the future. It adopts a markup language RDF for describing 152 network resource property, and focuses on the classification and 153 coding rules of network measurement elements and their expansion 154 methods. 156 2. Terminology and Definition 158 2.1. Terminology and Definition 160 In this memo, individuals represent the objects of interest in the 161 field of network mapping space, and OWL does not use the Unique Name 162 Assumption. It must clearly indicate whether individuals are 163 identical, otherwise their relationship is unclear. 165 Note: Individuals are sometimes referred to as Instances. 167 2.2. Property 169 Properties are binary relationships between individuals. In the 170 description logic, the concept of a Role is represented. Properties 171 can be divided into the following categories: 173 Functional property 175 Functional property can only be connected to one individual. 177 Inverse Functional Property 179 The inverse functional property is that for a given individual, only 180 at most one individual can be connected through this property. That 181 is, the inverse property of this property is a functional property. 183 Inverse Property 185 The inverse property uses only one property name as a parameter, 186 indicating the inversion of the relationship. 188 Transitive Property 190 Transitive property means that the property can be passed. 192 Object Property 194 The Object property represents the relationship between instances of 195 two classes. 197 Datatype Property 199 Connect individual and XML Schema data type values or RDF literals, 200 Datatype property cannot be passed, symmetric, or inverse functional. 202 2.3. Cyberspace Feature 204 Cyberspace is a virtual and real space where human beings use 205 information facilities to construct and realize the information 206 interaction, and then influence human thoughts and behaviors. It 207 relies on the carrier of information and communication technology 208 infrastructure carriers such as Internet, telecommunication networks, 209 and various control systems and devices. 211 In cyberspace, the use of cyberspace means to detect and perceive 212 entities, including the Internet, telecommunications networks, 213 industrial control networks and other types of network resources. 214 Specifically, cyberspace resources include physical equipment such as 215 network infrastructure and network access; information resources and 216 network services such as audio, video, websites and text data; 217 virtual characters, various IP-based telecommunication network 218 equipment and industrial control systems, etc. 220 The feature is an abstract representation of an entity. Note: 221 Features can appear as types or as instances. When expressing only 222 one meaning, you should use a feature type or a feature instance.A 223 single cyberspace resource object existing in cyberspace is a 224 specific unit of cyberspace resource feature, and it is also the 225 smallest component of the corresponding feature types, and can be 226 represented by specific symbols. 228 3. Symbol and Abbreviation 230 RDF: Resource Description Framework 232 RDFS: Resource Description Framework Schema 234 XML: Extensible Markup Language 236 OWL: Ontology Web Language 238 URI: Uniform Resource Identifier 239 DTD: Document Type Definition 241 IDL: Interface Description Language 243 OCL: Object Constraint Language 245 4. Use cases 247 The following sections highlight some of the most common framework 248 for network resource property description use case scenarios and are 249 in no way exhaustive. 251 4.1. Intelligent semantic search 253 The traditional search method mainly uses keyword matching to realize 254 the retrieval of information. Therefore, it is difficult for the 255 user to simply use the keyword or keyword string to retrieve the 256 content that he really needs, and the natural language changes with 257 time, region or field. The same concept can be expressed in 258 different language expressions. For the same concept retrieval, 259 different users may use different keywords to query, resulting in a 260 large amount of irrelevant information being returned to the user. 262 Intelligent semantic search based on framework for network resource 263 property description is an advanced form of information retrieval, 264 which can provide users with search results in an accurate and 265 concise natural language. When the user initiates the query, the 266 search engine will provides unique identities for each resource, map 267 to parse and reason the keywords of the user query, and then map it 268 to one or a set of concepts, and then according to the concept level 269 in the framework. 271 4.2. Network security situational awareness 273 There are many elements involved in cyber security. These elements 274 often play a role in the attack threat. According to the order of 275 context, the layers are progressive, and finally reflect the macro 276 network security situation. The purpose of each element is 277 different, and the network security situation process can be divided 278 into several situational segments. Various situational elements are 279 extracted through network security events. 281 Network security situational awareness based on framework for network 282 resource property description can be regarded as a specific 283 situational segment. Through the structure of the security 284 situational, the role of various situational elements is 285 hierarchically displayed, enabling managers to grasp the current 286 network security more deeply and accurately. 288 4.3. Network Security 290 Network viruses and worms themselves are also a kind of network 291 resources. With the deepening of network opening and complexity, 292 network viruses and worms are evolving constantly, and the 293 characteristics of diversity and spatial discretization are 294 increasing, resulting in a great hidden danger of network security. 296 The framework for network resources categorization can locate the 297 network resources more accurately and distinguish the benign or 298 malignant network resources, study the process of virus evolution and 299 the possible effects according to the attached attributes , and 300 provide a clearer way to safeguard the operation of network space 301 security, such as anti virus, antivirus and so on. 303 5. Methodology for Network Resources Attribute Description 305 5.1. Basic Principles 307 5.1.1. Scientific principle 309 The attribute description should conform to the basic organizational 310 rules of cyberspace resource mapping information. The selection of 311 attribute classification perspective should meet the integration 312 requirements of multi-source cyberspace resource mapping information, 313 and fully take into account the traditional information 314 classification system in various fields, thus covering network 315 mapping information at various levels and fields. 317 5.1.2. Systematic principle 319 The methodology of Attribute description should be designed with good 320 compatibility and can cover the requirements of the attribute 321 representation of network measuring and mapping feature of different 322 scales, different properties and different types. The attribute 323 categorization system should correctly reflect the measuring and 324 mapping feature and the vertical and horizontal architecture 325 attributes. The level of information categorization and grading 326 should be clear and reasonable. The same perspective should be 327 adopted for the categorization of objects at the same level. 329 5.1.3. Consistency principle 331 The design of attribute categorization and description should meet 332 the uniqueness of the measuring and mapping feature attributes of 333 cyberspace resources in the same mapping system, in which the values 334 and units of the physical domain, logical domain and cognitive domain 335 attributes of entities should be consistent with the national and 336 international standards in related fields. When the scale of 337 resources and attributes in cyberspace is modified and redirected, 338 the description of resource attributes and the relationship between 339 resources and attributes should be stable and semantically 340 consistent. 342 5.1.4. Scalability principle 344 The attribute description, meta property description, resource- 345 attribute relationship description and attribute-attribute 346 relationship description of cyberspace resources are able to perfect 347 and expand when facing the future development of cyberspace, multi- 348 domain information integration and sharing, mapping of unknown 349 resources and user requirements in different fields. 351 5.2. Attribute description framework 353 In this memo, the attributes of cyberspace resources are described by 354 RDF resource description framework, and metadata is described as a 355 data model through XML syntax and RDFS. The basic RDF specification 356 only defines the rules, and does not define the vocabularies for 357 describing resources. It should be refined for practical application 358 in different fields. 360 RDF uses Web identifiers (URI) to identify things, and attributes and 361 attribute values to describe resources, allowing RDF to represent one 362 or more simple statements about resources as a graph of nodes and 363 arcs, where nodes represent resource and attribute values and arcs 364 represent attributes. 366 The RDF description for the cyberspace resource attribute consists of 367 a file, resource description, and statement three-level structure, 368 which is serialized by RDF/XML syntax. A file can contain multiple 369 resource descriptions, and a resource description can contain 370 multiple statements, a statement can be expressed as a triplet 371 composed of {subject, predicate, object} in natural language. In the 372 cyberspace resource and the attribute description, the cyberspace 373 resource entity is corresponding to the subject in the triplet, the 374 cyberspace attribute type is corresponding to the predicate in the 375 triplet, and the attribute value is corresponding to the object in 376 the triplet, which constitute the{cyberspace resource entity, 377 cyberspace attribute type, attribute value} triplet can accurately 378 and unambiguously record and describe all the information obtained 379 during the measuring and mapping process. 381 5.3. Description of association rules for attributes description 383 The association rules of attributes represent the internal relations 384 between attributes, and the possible associations or relations 385 between things can be found behind the data. Unsupervised machine 386 learning methods commonly found in data mining can be used for 387 knowledge discovery and building knowledge maps. In this memo, 388 various attribute association operations are defined: alias 389 relationship, synonym relationship, ownership relationship, and 390 aggregation relationship. 392 5.3.1. Alias relationship 394 1) Relationship name: ch: Alias 396 2) Relational meaning: representing different names of the same 397 attribute 399 3) Constraints: optional 401 4) Range: no specific requirements 403 5.3.2. Synonym relationship 405 1) Relationship name: ch: Synonymy 407 2) Relational meaning: representing the same meaning of multiple 408 attributes 410 3) Constraints: optional 412 4) Range: no specific requirements 414 5.3.3. Ownership relationship 416 1) Relationship name: ch: Ownership 418 2) Relational meaning: representing the inclusion relationship 419 between attributes 421 3) Constraints: optional 423 4) Range: no specific requirements 425 5.3.4. Aggregation relationship 427 1) Relationship name: ch: Aggregation 429 2) Relational meaning: representing the clustering relationship of 430 multiple attributes 432 3) Constraints: optional 434 4) Range: no specific requirements 436 5.4. Meta property 438 The meta property is defined as an attribute of a measuring and 439 mapping data attribute, and is used to describe information such as a 440 feature type, a domain, a range, a hierarchy, an aggregate, and a 441 reference attribute. 443 5.4.1. Property type 445 1) Metaproperty name: meta_property: type 447 2) Metaproperty meaning: Representing the category of an attribute 449 3) Data type: STRING (XML Schema. STRING) 451 4) Constraints: mandatory 453 5) Range: sub-classification results of attributes 455 5.4.2. Property hierarchy 457 1) Metaproperty name: meta_property: hierarchy 459 2) Metaproperty meaning: Representing the hierarchy to which the 460 attribute belongs 462 3) Data type: STRING (XML Schema. STRING) 464 4) Constraints: mandatory 466 5) Range: physics, logic, cognition and society 468 5.4.3. Property range 470 1) Metaproperty name: meta_property: range 472 2) Metaproperty meaning: Representing the attribute value range 473 3) Data type: STRING (XML Schema. STRING) 475 4) Constraints: mandatory 477 5) Range: depending on the value of the property 479 5.4.4. Hash of property value 481 1) Metaproperty name: meta_property: hash 483 2) Metaproperty meaning: The hash of property 485 3) Data type: INT (XMLSchema.INT) 487 4) Constraints: mandatory 489 5) Range: 8-bit hash 491 5.4.5. Property keyword 493 1) Metaproperty name: meta_property: keyword 495 2) Metaproperty meaning: Keyword that represents the value of the 496 property; if not, fill in null 498 3) Data type: STRING (XML Schema. STRING) 500 4) Constraints: mandatory 502 5) Range: no specific requirements 504 5.4.6. Rate of property change 506 1) Metaproperty name: meta_property: rate 508 2) Metaproperty meaning: Representing the frequency of change of 509 attributes 511 3) Data type: STRING (XML Schema. STRING) 513 4) Constraints: mandatory 515 5) Range: Static, slow change, fast change, change as needed 517 5.4.7. Property dependency 519 1) Metaproperty name: meta_property: depend 521 2) Metaproperty meaning: Representation attribute generation depends 522 on additional attributes. 524 3) Data type: STRING (XML Schema. STRING) 526 4) Constraints: optional 528 5) Range: Other attribute name 530 6. Framework for Network Resources Attribute Description 532 According to the state, structure and behavior characteristics of 533 resources at different levels in cyberspace, this memo divides the 534 properties of resources in cyberspace into four categories, namely 535 physical domain, logical domain, cognitive domain and social domain, 536 which are respectively used to describe the explicit and partial 537 implicit characteristics of resources at corresponding levels. In 538 addition to representing the properties of cyberspace resources, the 539 memo also includes nine meta property, which represent the common 540 features of attributes. The attribute description specifies its 541 meaning, data type, range of values, and so on as much as possible. 543 6.1. Physical domain attributes 545 The physical domain attribute represents a subset of features that 546 can be observed, queried, recorded, and measured in the physical 547 space and geospatial of each resource feature constituting the 548 cyberspace. Each attribute value is closely related to the objective 549 existence of the corresponding resource feature in the physical 550 world. Resources are at a higher level, the material basis of 551 services. According to the attribute, the focus of the resource 552 entity is reflected, and further subdivided into basic attributes, 553 electrical attributes and security attributes.. 555 6.1.1. Basic attributes of the entity 557 The basic attributes of the entity cover the general characteristics 558 of the naming, identification, location, attribution, appearance, 559 material, and price of the resource in the physical space. Most of 560 the basic attributes of resources of a single entity, once 561 determined, change little during the run and can be considered a more 562 stable base class feature. 564 name 565 1) Attribute name: exns_property: phys_name 567 2) Attribute meaning: the name of the entity 569 3) Data type: string (XMLSchema. STRING) 571 4) Constraint: optional 573 5) Range of values: no specific requirements 575 Country 577 1) Attribute name: exns_property: phys_country 579 2) Attribute meaning: the country of the entity 581 3) Data type: string (XMLSchema.STRING) 583 4) Constraint: optional 585 5) Range of values: meet the GB/T 2659-2000 standard specification 587 Country Code 589 1) Attribute name: exns_property: phys_countrycode 591 2) Attribute meaning: country code of the entity 593 3) Data type: string (XMLSchema.STRING) 595 4) Constraint: optional 597 5) Range of values: meet the GB/T 2659-2000 standard specification 599 City 601 1) Attribute name: exns_property: phys_city 603 2) Attribute meaning: the city to which the entity belongs 605 3) Data type: string (XMLSchema.STRING) 607 4) Constraint: optional 609 5) Range of values: meet the GB/T 2659-2000 standard specification 611 Streets 612 1) Attribute name: exns_property: phys_street 614 2) Attribute meaning: the street to which the entity belongs 616 3) Data type: string (XMLSchema.STRING) 618 4) Constraint: optional 620 5) Range of values: meet the GB/T 2659-2000 standard specification 622 Latitude 624 1) Attribute name: exns_property: phys_latitude 626 2) Attribute meaning: the geographic latitude of the entity 628 3) Data type: floating point number (XMLSchema.FLOAT) 630 4) Constraint: optional 632 5) Range of values: meet the GB/T 28589-2012 standard specification 634 Longitude 636 1) Attribute name: exns_property: phys_longitude 638 2) Attribute meaning: the geographical longitude of the entity 640 3) Data type: floating point number (XMLSchema. FLOAT) 642 4) Constraint: optional 644 5) Range of values: meet the GB/T 28589-2012 standard specification 646 Affiliation 648 1) Attribute name: exns_property: phys_organization 650 2) Attribute meaning: the Chinese name of the organization to which 651 the entity belongs 653 3) Data type: string (XMLSchema.STRING) 655 4) Constraint: optional 657 5) Range of values: no specific requirements 659 Manufacturer 660 1) Attribute name: exns_property: phys_manufacturer 662 2) Attribute meaning: the manufacturer of the entity 664 3) Data type: string (XMLSchema. STRING) 666 4) Constraint: optional 668 5) Range of values: no specific requirements 670 Model code 672 1) Attribute name: exns_property: phys_entity_model 674 2) Attribute meaning: the specific model code of the entity 676 3) Data type: string (XMLSchema. STRING) 678 4) Constraint: required 680 5) Range of values: no specific requirements 682 Date of manufacture 684 1) Attribute name: exns_property: phys_manufacturedata 686 2) Attribute meaning: the date of production of the entity 688 3) Data type: date type (XMLSchema.DATETIME) 690 4) Constraint: optional 692 5) Range of values: meet the GB/T 7408-1994 standard specification 694 6.1.2. Electrical attributes of the entity 696 The electrical attributes of the entity are used to describe the 697 component characteristics, signal characteristics, electrical 698 characteristics, connection characteristics, energy conversion 699 characteristics, etc. necessary for the resource to support the 700 operation of the network space. These characteristics reflect and 701 constrain the realization level of the function and performance of 702 the resource entity at a higher level. 704 Boot date 706 1) Attribute name: exns_property: phys_startdate 707 2) Attribute meaning: the boot date of the entity 709 3) Data type: date type (XMLSchema.DATETIME) 711 4) Constraint: optional 713 5) Range of values: meet the GB/T 7408-1994 standard specification 715 Chip temperature 717 1) Attribute name: exns_property: phys_chiptemperature 719 2) Attribute meaning: physical sensor chip temperature 721 3) Data type: floating point number (XMLSchema.FLOAT) 723 4) Constraint: optional 725 5) Range of values: no specific requirements 727 Power consumption 729 1) Attribute name: exns_property: phys_power 731 2) Attribute meaning: average power consumption of physical work 733 3) Data type: floating point number (XMLSchema.FLOAT) 735 4) Constraint: optional 737 5) Range of values: greater than zero 739 Input voltage 741 1) Attribute name: exns_property: phys_inputvoltage 743 2) Attribute meaning: physical input voltage 745 3) Data type: floating point number (XMLSchema.FLOAT) 747 4) Constraint: optional 749 5) Range of values: no specific requirements 751 The output voltage 753 1) Attribute name: exns_property: phys_outputvoltage 754 2) Attribute meaning: the output voltage of the entity 756 3) Data type: floating point number (XMLSchema.FLOAT) 758 4) Constraint: optional 760 5) Range of values: no specific requirements 762 Input Current 764 1) Attribute name: exns_property: phys_inputcurrent 766 2) Attribute meaning: physical input current 768 3) Data type: floating point number (XMLSchema.FLOAT) 770 4) Constraint: optional 772 5) Range of values: no specific requirements 774 Output current 776 1) Attribute name: exns_property: phys_outputcurrent 778 2) Attribute meaning: the output current of the entity 780 3) Data type: floating point number (XMLSchema.FLOAT) 782 4) Constraint: optional 784 5) Range of values: no specific requirements 786 Baud rate 788 1) Attribute name: exns_property: phys_baudrate 790 2) Attribute meaning: physical serial communication baud rate 792 3) Data type: floating point number (XMLSchema.FLOAT) 794 4) Constraint: optional 796 5) Range of values: no specific requirements 798 Firmware 800 1) Attribute name: exns_property: phys_firmware 801 2) Attribute meaning: firmware version of the entity 803 3) Data type: string (XMLSchema.STRING) 805 4) Constraint: optional 807 5) Range of values: no specific requirements 809 6.1.3. Environmental adaptation attributes of the entity 811 The environmental adaptation attributes of the entity reflect the 812 relevant characteristics of the entity itself to avoid the impact and 813 destruction of the source from the physical world in anticipation and 814 unanticipated circumstances, and to avoid the disruption of the 815 integrity and availability of its functions within certain limits, 816 and reflects the self-protection ability of the entity in the 817 physical world. 819 Stability 821 1) Attribute name: exns_property: phys_safe_stability 823 2) Attribute meaning: characterize the stability of the entity in the 824 physical domain 826 3) Data type: string (XMLSchema.STRING) 828 4) Constraint: optional 830 5) Range of values: no specific requirements 832 Heat resistance 834 1) Attribute name: exns_property: phys_ safe_heatresistance 836 2) Attribute meaning: characterize the heat resistance of the entity 837 in the physical domain, the highest temperature at which the entity 838 works normally. 840 3) Data type: floating point number (XMLSchema. FLOAT) 842 4) Constraint: optional 844 5) Range of values: no specific requirements 846 High frequency oscillation 848 1) Attribute name: exns_property: phys_ safe_oscillationresistance 849 2) Attribute meaning: characterize the highest oscillation frequency 850 that the entity can withstand 852 3) Data type: floating point number (XMLSchema. FLOAT) 854 4) Constraint: optional 856 5) Range of values: no specific requirements 858 Resistance to surge 860 1) Attribute name: exns_property: phys_ safe_surgeresistance 862 2) Attribute meaning: characterizing the immunity of the entity in 863 the physical domain 865 3) Data type: string (XMLSchema.STRING) 867 4) Constraint: optional 869 5) Range of values: no specific requirements 871 Corrosion resistance 873 1) Attribute name: exns_property: phys_ safe_corrosionistance 875 2) Attribute meaning: characterize the corrosion resistance of the 876 entity in the physical domain 878 3) Data type: string (XMLSchema.STRING) 880 4) Constraint: optional 882 5) Range of values: no specific requirements 884 6.2. logical domain attributes 886 The logical attributes describe the characteristics inherent, 887 endowed, maintained or changed in the process of the generation, 888 transmission, storage, exchange, use and clearing of the data and 889 information of the various resource features constituting the 890 cyberspace. Including the basic attributes of network equipment, 891 network service attributes, network performance attributes, network 892 topology attributes and network security attributes. 894 6.2.1. Basic attributes of network devices 896 The basic attributes of network devices are the basic characteristics 897 of the naming, address, structure and composition of resource 898 entities in cyberspace, which are used to realize the ability of 899 identification, query and communication, etc., and are generally 900 shared by all network devices. 902 MAC address 904 1) Attribute name: exns_property: logi_mac 906 2) Attribute meaning: MAC address of the network device 908 3) Data type: string (XMLSchema.STRING) 910 4) Constraint: required 912 5) Range of values: conforms to the unified mac address format 913 provided by TCP/IP protocol 915 IP address 917 1) Attribute name: exns_property: logi_ip 919 2) Attribute meaning: IP address of the network device 921 3) Data type: string (XMLSchema.STRING) 923 4) Constraint: required 925 5) Range of values: in accordance with IP address notation 927 Subnet mask 929 1) Attribute name: exns_property: logi_mask 931 2) Attribute meaning: subnet mask of the network device 933 3) Data type: string (XMLSchema.STRING) 935 4) Constraint: required 937 5) Range of values: conforms to the subnet mask representation 938 specification 940 Gateway address 941 1) Attribute name: exns_property: logi_gateway 943 2) Attribute meaning: gateway address of the network device 945 3) Data type: string (XMLSchema.STRING) 947 4) Constraint: required 949 5) Range of values: in accordance with IP address notation 951 DNS address 953 1) Attribute name: exns_property: logi_dns 955 2) Attribute meaning: domain name server address of the network 956 device 958 3) Data type: string (XMLSchema.STRING) 960 4) Constraint: required 962 5) Range of values: in accordance with IP address notation 964 DHCP address 966 1) Attribute name: exns_property: logi_dhcp 968 2) Attribute meaning: Dynamic allocation of IP server address of 969 network device 971 3) Data type: string (XMLSchema.STRING) 973 4) Constraint: optional 975 5) Range of values: in accordance with IP address notation 977 host name 979 1) Attribute name: exns_property: logi_hostname 981 2) Attribute meaning: host name of the network device 983 3) Data type: string (XMLSchema.STRING) 985 4) Constraint: optional 987 5) Range of values: no specific requirements 988 domain name 990 1) Attribute name: exns_property: logi_domain 992 2) Attribute meaning: the name of the domain to which the network 993 device belongs 995 3) Data type: string (XMLSchema.STRING) 997 4) Constraint: optional 999 5) Range of values: no specific requirements 1001 6.2.2. Attributes of network services 1003 The attributes of network services are used to describe the 1004 mechanism, mode, scope, condition and other characteristics of the 1005 interaction between entity resources and other entities in the 1006 network, including but not limited to the processes of establishing 1007 connections, providing data, obtaining data, and transferring data. 1009 Data Format 1011 1) Attribute name: exns_property: logi_datatype 1013 2) Attribute meaning: end-to-end data format 1015 3) Data type: string (XMLSchema.STRING) 1017 4) Constraint: optional 1019 5) Range of values: no specific requirements 1021 Projection entity 1023 1) Attribute name: exns_property: logi_projectiveentity 1025 2) Attribute meaning: network equipment providing network services 1027 3) Data type: string (XMLSchema.STRING) 1029 4) Constraint: optional 1031 5) Range of values: no specific requirements 1033 Service type 1035 1) Attribute name: exns_property: logi_servicetype 1036 2) Attribute meaning: the protocol type of the network service, for 1037 example: ftp, http, https, etc. 1039 3) Data type: string (XMLSchema.STRING) 1041 4) Constraint: optional 1043 5) Range of values: no specific requirements 1045 Known port 1047 1) Attribute name: exns_property: logi_port _wellknow 1049 2) Attribute meaning: a recognized port open to the network device 1051 3) Data type: integer array (XMLSchema.INT) 1053 4) Constraint: optional 1055 5) Range of values: range from 0 to 1023 1057 Registered port 1059 1) Attribute name: exns_property: logi_port_registered 1061 2) Attribute meaning: the registered port of the network device is 1062 open to the outside world. 1064 3) Data type: integer array (XMLSchema.INT) 1066 4) Constraint: optional 1068 5) Range of values: range from 1024 to 49151 1070 Dynamic port 1072 1) Attribute name: exns_property: logi_port _dynamic 1074 2) Attribute meaning: dynamic port open to network devices 1076 3) Data type: integer array (XMLSchema.INT) 1078 4) Constraint: optional 1080 5) Range of values: ranging from 49152 to 65535 1082 Port banner information 1083 1) Attribute name: exns_property: logi_port_banner 1085 2) Attribute meaning: banner information that the network device is 1086 open to the outside world 1088 3) Data type: string (XMLSchema.STRING) 1090 4) Constraint: optional 1092 5) Range of values: no specific requirements 1094 Port rate 1096 1) Attribute name: exns_property: logi_port_rate 1098 2) Attribute meaning: real-time rate of network device open port 1100 3) Data type: floating point number (XMLSchema.FLOAT) 1102 4) Constraint: optional 1104 5) Range of values: rate statistics should be greater than zero, 1105 generally in MB/S units 1107 Port throughput 1109 1) Attribute name: exns_property: logi_port_ flux 1111 2) Attribute meaning: traffic statistics of network device open ports 1113 3) Data type: floating point number (XMLSchema.FLOAT) 1115 4) Constraint: optional 1117 5) Range of values: Traffic statistics should be greater than zero, 1118 generally in MB units 1120 Port transfer protocol 1122 1) Attribute name: exns_property: logi_port_transportprotocol 1124 2) Attribute meaning: the transmission protocol of the open port of 1125 the network device, for example: udp, tcp, etc. 1127 3) Data type: string (XMLSchema.STRING) 1129 4) Constraint: optional 1130 5) Range of values: no specific requirements 1132 Service address 1134 1) Attribute name: exns_property: logi_url 1136 2) Attribute meaning: the access address provided by the network 1137 service 1139 3) Data type: string (XMLSchema.STRING) 1141 4) Constraint: optional 1143 5) Range of values: no specific requirements 1145 6.2.3. Attributes of network performance 1147 The attributes of network performance are used to describe the 1148 different characteristics of capacity, efficiency and ability of 1149 resource entities to perform various logical domain network 1150 operations and activities, which can indirectly reflect the value and 1151 importance of resources in cyberspace. 1153 Backplane bandwidth 1155 1) Attribute name: exns_property: logi_backplane_bandwidth 1157 2) Attribute meaning: backplane bandwidth of the network device 1159 3) Data type: floating point number (XMLSchema.FLOAT) 1161 4) Constraint: optional 1163 5) Range of values: greater than zero 1165 Packet forwarding rate 1167 1) Attribute name: exns_property: logi_forwarding_rate 1169 2) Attribute meaning: packet forwarding rate of network devices 1171 3) Data type: floating point number (XMLSchema.FLOAT) 1173 4) Constraint: optional 1175 5) Range of values: greater than zero 1177 Forwarding delay 1178 1) Attribute name: exns_property: logi_forwarding_delay 1180 2) Attribute meaning: forwarding delay of network equipment 1182 3) Data type: floating point number (XMLSchema.FLOAT) 1184 4) Constraint: optional 1186 5) Range of values: greater than zero 1188 QoS packet forwarding rate 1190 1) Attribute name: exns_property: logi_qosforwarding_rate 1192 2) Attribute meaning: qos packet forwarding rate of network devices 1194 3) Data type: floating point number (XMLSchema.FLOAT) 1196 4) Constraint: optional 1198 5) Range of values: greater than zero 1200 Packet loss rate 1202 1) Attribute name: exns_property: logi_packet_ loss 1204 2) Attribute meaning: packet loss rate of network devices 1206 3) Data type: floating point number (XMLSchema.FLOAT) 1208 4) Constraint: optional 1210 5) Range of values: percentage 1212 Throughput 1214 1) Attribute name: exns_property: logi_throughput 1216 2) Attribute meaning: throughput of network equipment 1218 3) Data type: floating point number (XMLSchema.FLOAT) 1220 4) Constraint: optional 1222 5) Range of values: greater than zero 1224 Maximum bandwidth 1225 1) Attribute name: exns_property: logi_max_bandwidth 1227 2) Attribute meaning: the maximum bandwidth of the network device 1229 3) Data type: floating point number (XMLSchema.FLOAT) 1231 4) Constraint: optional 1233 5) Range of values: greater than zero 1235 Maximum number of connections 1237 1) Attribute name: exns_property: logi_max_link 1239 2) Attribute meaning: the maximum number of connections of the 1240 network device 1242 3) Data type: integer (XMLSchema.INT) 1244 4) Constraint: optional 1246 5) Range of values: greater than zero 1248 Link rate 1250 1) Attribute name: exns_property: logi_link_rate 1252 2) Attribute meaning: the amount of information transmitted on the 1253 link per unit time 1255 3) Data type: floating point number (XMLSchema.FLOAT) 1257 4) Constraint: optional 1259 5) Range of values: greater than zero 1261 Transmission delay 1263 1) Attribute name: exns_property: logi_transmission_delay 1265 2) Attribute meaning: transmission delay of network equipment 1267 3) Data type: floating point number (XMLSchema.FLOAT) 1269 4) Constraint: optional 1271 5) Range of values: greater than zero 1272 Operating mode 1274 1) Attribute name: exns_property: logi_working_mode 1276 2) Attribute meaning: working mode of network equipment 1278 3) Data type: string (XMLSchema.STRING) 1280 4) Constraint: optional 1282 5) Range of values: full or half duplex 1284 6.2.4. Attributes of network topology 1286 The attributes of network topology are used to describe self-formed, 1287 human-made or on-demand configured topology features consisting of 1288 multiple resource entities and links containing a certain structure. 1289 Such attributes usually reflect the state, development and law of the 1290 static and dynamic structure of corresponding cyberspace resources. 1292 Autonomous domain name 1294 1) Attribute name: exns_property: logi_as_name 1296 2) Attribute meaning: the naming of the autonomous domain of the 1297 entity 1299 3) Data type: string (XMLSchema.STRING) 1301 4) Constraint: optional 1303 5) Range of values: global autonomous domain 1305 Autonomous domain number 1307 1) Attribute name: exns_property: logi_asn 1309 2) Attribute meaning: the autonomous system asn number of the entity 1311 3) Data type: number (XMLSchema.INT) 1313 4) Constraint: optional 1315 5) Range of values: Global Autonomous System ASN numbering table 1317 Autonomous domain type 1319 1) Attribute name: exns_property: logi_asn_type 1320 2) Attribute meaning: the AS type of the autonomous system to which 1321 the entity belongs 1323 3) Data type: string (XMLSchema.STRING) 1325 4) Constraint: optional 1327 5) Range of values: type of autonomous domain 1329 ISP 1331 1) Attribute name: exns_property: isp 1333 2) Attribute meaning: entity's Internet service provider 1335 3) Data type: string (XMLSchema.STRING) 1337 4) Constraint: optional 1339 5) Range of values: no specific requirements 1341 Route prefix 1343 1) Attribute name: exns_property: logi_routedprefix 1345 2) Attribute meaning: the route prefix of the entity 1347 3) Data type: string (XMLSchema. STRING) 1349 4) Constraint: optional 1351 5) Range of values: Specification format conforming to IP plus mask 1353 Router level 1355 1) Attribute name: exns_property: logi_router_level 1357 2) Attribute meaning: The level of the router in the network, for 1358 example: access level, aggregation level, backbone level, and so on. 1360 3) Data type: string (XMLSchema. STRING) 1362 4) Constraint: optional 1364 5) Range of values: no specific requirements 1366 Number of network nodes 1367 1) Attribute name: exns_property: logi_nodenumber 1369 2) Attribute meaning: the number of nodes in the entity's network 1371 3) Data type: integer (XMLSchema. INT) 1373 4) Constraint: optional 1375 5) Range of values: no specific requirements 1377 Number of network sides 1379 1) Attribute name: exns_property: logi_edgenumber 1381 2) Attribute meaning: the number of connected sides in the entity's 1382 network 1384 3) Data type: integer (XMLSchema. INT) 1386 4) Constraint: optional 1388 5) Range of values: no specific requirements 1390 Center degree 1392 1) Attribute name: exns_property: logi_ centerdegree 1394 2) Attribute meaning: the central degree of the network segment 1396 3) Data type: integer (XMLSchema. INT) 1398 4) Constraint: optional 1400 5) Range of values: no specific requirements 1402 Node degree 1404 1) Attribute name: exns_property: logi_nodedegree 1406 2) Attribute meaning: the node degree of the network segment 1408 3) Data type: integer (XMLSchema. INT) 1410 4) Constraint: optional 1412 5) Range of values: no specific requirements 1414 AS boundary 1415 1) Attribute name: exns_property: logi_as_edge 1417 2) Attribute meaning: whether the router is an as border router 1419 3) Data type: Boolean (XMLSchema.BOOLEAN) 1421 4) Constraint: optional 1423 5) Range of values: no specific requirements 1425 Country gateway 1427 1) Attribute name: exns_property: logi_ nationalgateway 1429 2) Attribute meaning: whether the network device is a country gateway 1431 3) Data type: Boolean (XMLSchema.BOOLEAN) 1433 4) Constraint: optional 1435 5) Range of values: no specific requirements 1437 Segment address 1439 1) Attribute name: exns_property: logi_ segment_address 1441 2) Attribute meaning: address information of the network segment 1443 3) Data type: string (XMLSchema. STRING) 1445 4) Constraint: optional 1447 5) Range of values: no specific requirements 1449 Segment mask 1451 1) Attribute name: exns_property: logi_ segment _mask 1453 2) Attribute meaning: mask information of the network segment 1455 3) Data type: string (XMLSchema. STRING) 1457 4) Constraint: optional 1459 5) Range of values: no specific requirements 1461 Network segment router number 1462 1) Attribute name: exns_property: logi_ segment_router 1464 2) Attribute meaning: router number information of the network 1465 segment 1467 3) Data type: integer (XMLSchema. INT) 1469 4) Constraint: optional 1471 5) Range of values: no specific requirements 1473 Network segment IP number 1475 1) Attribute name: exns_property: logi_ segment _num 1477 2) Attribute meaning: the number of IP addresses contained in the 1478 network segment 1480 3) Data type: integer (XMLSchema. INT) 1482 4) Constraint: optional 1484 5) Range of values: no specific requirements 1486 Neighbor network segment 1488 1) Attribute name: exns_property: logi_ segment _ neighbor 1490 2) Attribute meaning: whether the router is an anonymous router 1492 3) Data type: string (XMLSchema. STRING) 1494 4) Constraint: optional 1496 5) Range of values: no specific requirements 1498 Topology 1500 1) Attribute name: exns_property: logi_ topological 1502 2) Attribute meaning: network topology 1504 3) Data type: string (XMLSchema. STRING) 1506 4) Constraint: optional 1508 5) Range of values: bus type, ring, star type 1510 6.2.5. Attributes of network security 1512 The attributes of network security reflect the ability of entity 1513 itself to the expected and unexpected response to information from 1514 the data under the condition of operation, the influence of the 1515 exchange and transfer the source and damage, in a certain limits to 1516 avoid its function of integrity, and availability is damaged, or 1517 their own responsible for generation and transmission or processing 1518 the confidentiality, integrity and availability of information 1519 related to the characteristics of the damage. These attributes 1520 represent the self-protection and information protection capabilities 1521 of entities in the logical domain of cyberspace. 1523 Encryption Algorithm 1525 1) Attribute name: exns_property: logi_ safe_ encryptionalgorithm 1527 2) Attribute meaning: encryption algorithm for data transmission 1529 3) Data type: string (XMLSchema. STRING) 1531 4) Constraint: optional 1533 5) Range of values: AES, DES, RSA 1535 Key length 1537 1) Attribute name: exns_property: logi_ safe_ keylength 1539 2) Attribute meaning: key length of the encryption algorithm 1541 3) Data type: integer (XMLSchema. INT) 1543 4) Constraint: optional 1545 5) Range of values: 64, 128, 256 1547 Key replacement time 1549 1) Attribute name: exns_property: logi_ safe_ keychangetime 1551 2) Attribute meaning: key replacement time 1553 3) Data type: date type (XMLSchema.DATETIME) 1555 4) Constraint: optional 1557 5) Range of values: meet the GB/T 7408-1994 standard specification 1558 Key distribution mechanism 1560 1) Attribute name: exns_property: logi_ safe_ keydistribution 1562 2) Attribute meaning: key replacement time 1564 3) Data type: string (XMLSchema. STRING) 1566 4) Constraint: optional 1568 5) Range of values: no specific requirements 1570 Authentication method 1572 1) Attribute name: exns_property: logi_ safe_ authenticationmethod 1574 2) Attribute meaning: the identity authentication method adopted by 1575 the security system 1577 3) Data type: string (XMLSchema. STRING) 1579 4) Constraint: optional 1581 5) Range of values: one-way, two-way 1583 Authentication mechanism 1585 1) Attribute name: exns_property: logi_ safe_ authenticationmechanism 1587 2) Attribute meaning: the identity authentication mechanism adopted 1588 by the security system 1590 3) Data type: string (XMLSchema. STRING) 1592 4) Constraint: optional 1594 5) Range of values: password, certificate, bio, hybrid 1596 Authentication requirements 1598 1) Attribute name: exns_property: logi_ safe_ authenticationrequire 1600 2) Attribute meaning: identity authentication requirements adopted by 1601 the security system 1603 3) Data type: string (XMLSchema. STRING) 1605 4) Constraint: optional 1606 5) Range of values: USBKey, digital certificate, trusted module 1608 Certificate type 1610 1) Attribute name: exns_property: logi_ safe_certificatetype 1612 2) Attribute meaning: the type of identity authentication certificate 1613 adopted by the security system 1615 3) Data type: string (XMLSchema. STRING) 1617 4) Constraint: optional 1619 5) Range of values: X.509, LDAP 1621 Access control type 1623 1) Attribute name: exns_property: logi_ safe_ accesscontroltype 1625 2) Attribute meaning: the type of access control adopted by the 1626 security system 1628 3) Data type: string (XMLSchema. STRING) 1630 4) Constraint: optional 1632 5) Range of values: MAC, DAC, RBAC, ABAC, IBAC 1634 Security policy level 1636 1) Attribute name: exns_property: logi_ safe_ policylevel 1638 2) Attribute meaning: the policy level adopted by the security system 1640 3) Data type: string (XMLSchema. STRING) 1642 4) Constraint: optional 1644 5) Range of values: high, medium and low 1646 Patch update time 1648 1) Attribute name: exns_property: logi_ safe_ patchupdatetime 1650 2) Attribute meaning: system patch update time 1652 3) Data type: date type (XMLSchema.DATETIME) 1653 4) Constraint: optional 1655 5) Range of values: meet the GB/T 7408-1994 standard specification 1657 Patch installation 1659 1) Attribute name: exns_property: logi_ safe_ patchinfo 1661 2) Attribute meaning: system patch installation patch, including 1662 installed patches and no patches installed 1664 3) Data type: string (XMLSchema. STRING) 1666 4) Constraint: optional 1668 5) Range of values: no specific requirements 1670 Patch source address 1672 1) Attribute name: exns_property: logi_ safe_ patchaddr 1674 2) Attribute meaning: the address of the system patch download 1676 3) Data type: string (XMLSchema. STRING) 1678 4) Constraint: optional 1680 5) Range of values: no specific requirements 1682 Patch update mechanism 1684 1) Attribute name: exns_property: logi_ safe_ patchmethod 1686 2) Attribute meaning: the way the system patch is updated 1688 3) Data type: string (XMLSchema. STRING) 1690 4) Constraint: optional 1692 5) Range of values: subscription, push, offline 1694 Firewall type 1696 1) Attribute name: exns_property: logi_ safe_ firewalltype 1698 2) Attribute meaning: the way the system patch is updated 1700 3) Data type: string (XMLSchema. STRING) 1701 4) Constraint: optional 1703 5) Range of values: operating system comes with, host firewall, no 1704 firewall 1706 Intrusion detection type 1708 1) Attribute name: exns_property: logi_ safe_idstype 1710 2) Attribute meaning: type of intrusion detection adopted by the 1711 security system 1713 3) Data type: string (XMLSchema. STRING) 1715 4) Constraint: optional 1717 5) Range of values: None, HIDS, NIDS, IPS 1719 Host monitoring type 1721 1) Attribute name: exns_property: logi_ safe_ monitortype 1723 2) Attribute meaning: Host monitoring type adopted by the security 1724 system 1726 3) Data type: string (XMLSchema. STRING) 1728 4) Constraint: optional 1730 5) Range of values: None, Behavior, Network, All 1732 Security audit mechanism 1734 1) Attribute name: exns_property: logi_ safe_ audittype 1736 2) Attribute meaning: the type of security audit adopted by the 1737 security system 1739 3) Data type: string (XMLSchema. STRING) 1741 4) Constraint: optional 1743 5) Range of values: None, traffic, protocol, behavior 1745 Security management port 1747 1) Attribute name: exns_property: logi_ safe_ adminport 1748 2) Attribute meaning: the management interface provided by the 1749 security system 1751 3) Data type: integer (XMLSchema.INT) 1753 4) Constraint: optional 1755 5) Range of values: 0-65535 1757 Security management method 1759 1) Attribute name: exns_property: logi_ safe_ admintype 1761 2) Attribute meaning: the security management organization or company 1762 adopted by the security system 1764 3) Data type: string (XMLSchema. STRING) 1766 4) Constraint: optional 1768 5) Range of values: no specific requirements 1770 Security management mechanism 1772 1) Attribute name: exns_property: logi_ safe_ adminmethod 1774 2) Attribute meaning: the security management mechanism adopted by 1775 the security system 1777 3) Data type: string (XMLSchema. STRING) 1779 4) Constraint: optional 1781 5) Range of values: peer, cascade, autonomous 1783 6.3. Cognitive domain attributes 1785 The subject attributes in the cognitive domain are quite different 1786 from the physical domain and the logical domain, mainly reflecting 1787 the knowledge, thoughts, emotions and beliefs acquired, exchanged and 1788 formed by the projected entities in cyberspace in the form of virtual 1789 subjects in the cognitive domain. Due to the use of the diversity of 1790 the subject and the object information semantic complexity greatly 1791 deepened, and the related attributes with more categories, mainly 1792 includes the basic attributes of the virtual subject, the basic 1793 attributes of the projected entity, the behavioral attributes of the 1794 virtual subject, and the projection. The emotional attributes of the 1795 projected entity, the conceptual attributes of the projected entity, 1796 the attributes of the web service content, and the attributes of the 1797 data resource content, etc. 1799 6.3.1. Cognitive domain attributes 1801 The basic attributes of the virtual subject are used to describe the 1802 effective and meaningful assets, status and activity information of 1803 the virtual subject only in the cyberspace category. This 1804 information is stored and maintained by various network services, and 1805 thus has the characteristics of volatility and variability. 1807 Virtual principal account 1809 1) Attribute name: exns_property: cogi_virtualsubject_id 1811 2) Attribute meaning: virtual subject account 1813 3) Data type: string (XMLSchema. STRING) 1815 4) Constraint: required 1817 5) Range of values: no specific requirements 1819 Virtual principal password 1821 1) Attribute name: exns_property: cogi_virtualsubject_password 1823 2) Attribute meaning: the password of the virtual subject's account 1825 3) Data type: string (XMLSchema. STRING) 1827 4) Constraint: optional 1829 5) Range of values: no specific requirements 1831 Virtual subject location 1833 1) Attribute name: exns_property: cogi_virtualsubject_place 1835 2) Attribute meaning: the login location of the virtual subject 1837 3) Data type: string (XMLSchema. STRING) 1839 4) Constraint: optional 1841 5) Range of values: meet the GB/T 2659-2000 standard specification 1843 Virtual body login time 1844 1) Attribute name: exns_property: cogi_virtualsubject_date 1846 2) Attribute meaning: login time of virtual subject 1848 3) Data type: date type (XMLSchema.DATETIME) 1850 4) Constraint: optional 1852 5) Range of values: meet the GB/T 7408-1994 standard specification 1854 Virtual subject online time 1856 1) Attribute name: exns_property: cogi_virtualsubject_onelinetime 1858 2) Attribute meaning: online time of virtual subject 1860 3) Data type: date type (XMLSchema.DATETIME) 1862 4) Constraint: optional 1864 5) Range of values: meet the GB/T 7408-1994 standard specification 1866 Virtual subject registration time 1868 1) Attribute name: exns_property: cogi_virtualsubject_registeddate 1870 2) Attribute meaning: registration time of virtual subject 1872 3) Data type: date type (XMLSchema.DATETIME) 1874 4) Constraint: optional 1876 5) Range of values: meet the GB/T 7408-1994 standard specification 1878 Virtual principal name 1880 1) Attribute name: exns_property: cogi_virtualsubject_name 1882 2) Attribute meaning: the name of the virtual subject 1884 3) Data type: string (XMLSchema. STRING) 1886 4) Constraint: optional 1888 5) Range of values: no specific requirements 1890 Virtual body type 1891 1) Attribute name: exns_property: cogi_virtualsubject_type 1893 2) Attribute meaning: type of virtual subject 1895 3) Data type: string (XMLSchema. STRING) 1897 4) Constraint: optional 1899 5) Range of values: no specific requirements 1901 Virtual subject role 1903 1) Attribute name: exns_property: virtualsubject_function 1905 2) Attribute meaning: virtual subject works in virtual group 1907 3) Data type: string (XMLSchema. STRING) 1909 4) Constraint: optional 1911 5) Range of values: no specific requirements 1913 Virtual subject activity 1915 1) Attribute name: exns_property: cogi_virtualsubject_activity 1917 2) Attribute meaning: the activity of the virtual subject in the 1918 virtual group 1920 3) Data type: floating point type (XMLSchema.FLOAT) 1922 4) Constraint: optional 1924 5) Range of values: no specific requirements 1926 Virtual principal platform 1928 1) Attribute name: exns_property: cogi_virtualsubject_platform 1930 2) Attribute meaning: the platform where the virtual subject is 1931 located 1933 3) Data type: string (XMLSchema. STRING) 1935 4) Constraint: optional 1937 5) Range of values: no specific requirements 1939 6.3.2. Basic attributes of the projected entity 1941 The basic attributes of the projected entity are used to characterize 1942 the various characteristics of natural persons that exist in the 1943 physical world that participate in the activities of cyberspace, use 1944 the services of cyberspace, and manage the states of cyberspace. The 1945 basic attributes of the projected entity can guide and regulate the 1946 basic attributes of related virtual subjects. 1948 The name of the projection entity 1950 1) Attribute name: exns_property: cogi_mappingentity_name 1952 2) Attribute meaning: the name of the projection entity 1954 3) Data type: string (XMLSchema. STRING) 1956 4) Constraint: optional 1958 5) Range of values: no specific requirements 1960 Projecting entity gender 1962 1) Attribute name: exns_property: cogi_mappingentity_sex 1964 2) Attribute meaning: the gender of the projected entity 1966 3) Data type: string (XMLSchema. STRING) 1968 4) Constraint: optional 1970 5) Range of values: male/female 1972 Projection entity's ID number 1974 1) Attribute name: exns_property: cogi_mappingentity_id 1976 2) Attribute meaning: the document number of the projection entity 1978 3) Data type: string (XMLSchema. STRING) 1980 4) Constraint: optional 1982 5) Range of values: Code number specification for nationality 1984 Projection entity occupation 1986 1) Attribute name: exns_property: cogi_mappingentity_profession 1987 2) Attribute meaning: the occupation of the projection entity 1989 3) Data type: string (XMLSchema. STRING) 1991 4) Constraint: optional 1993 5) Range of values: no specific requirements 1995 The social level of the projected entity 1997 1) Attribute name: exns_property: cogi_mappingentity_sociallevel 1999 2) Attribute meaning: the social level of the projected entity 2001 3) Data type: string (XMLSchema. STRING) 2003 4) Constraint: optional 2005 5) Range of values: medium, low, high level 2007 The age of the projected entity 2009 1) Attribute name: exns_property: cogi_mappingentity_age 2011 2) Attribute meaning: age of the projection entity 2013 3) Data type: integer (XMLSchema.INT) 2015 4) Constraint: optional 2017 5) Range of values: greater than zero 2019 Nationality of the projected entity 2021 1) Attribute name: exns_property: cogi_mappingentity_nationality 2023 2) Attribute meaning: nationality of the projection entity 2025 3) Data type: string (XMLSchema. STRING) 2027 4) Constraint: optional 2029 5) Range of values: meet the GB/T 2659-2000 standard specification 2031 The language of the projected entity 2033 1) Attribute name: exns_property: cogi_mappingentity_language 2034 2) Attribute meaning: common language of the projection entity 2036 3) Data type: string (XMLSchema. STRING) 2038 4) Constraint: optional 2040 5) Range of values: no specific requirements 2042 Projecting entity accent 2044 1) Attribute name: exns_property: mappingentity_accent 2046 2) Attribute meaning: accent of the projected entity 2048 3) Data type: string (XMLSchema. STRING) 2050 4) Constraint: optional 2052 5) Range of values: no specific requirements 2054 Projecting the skin's skin tone 2056 1) Attribute name: exns_property: cogi_mappingentity_ colour 2058 2) Attribute meaning: the skin color of the projected entity 2060 3) Data type: string (XMLSchema. STRING) 2062 4) Constraint: optional 2064 5) Range of values: no specific requirements 2066 Projected entity 2068 1) Attribute name: exns_property: cogi_mappingentity_ posture 2070 2) Attribute meaning: the body state of the projected entity 2072 3) Data type: string (XMLSchema. STRING) 2074 4) Constraint: optional 2076 5) Range of values: no specific requirements 2078 The health of the projected entity 2080 1) Attribute name: exns_property: cogi_mappingentity_ health 2081 2) Attribute meaning: the health of the projected entity 2083 3) Data type: string (XMLSchema. STRING) 2085 4) Constraint: optional 2087 5) Range of values: excellent / good / poor 2089 Projecting entity intelligence 2091 1) Attribute name: exns_property: cogi_mappingentity_ intelligence 2093 2) Attribute meaning: the intelligence level of the projected entity 2095 3) Data type: string (XMLSchema. STRING) 2097 4) Constraint: optional 2099 5) Range of values: excellent / good / poor 2101 6.3.3. Behavioral attributes of the virtual subject 2103 The behavioral attributes of the virtual subject are used to describe 2104 the behavioral choices, behavioral rules, behavioral effects and 2105 other characteristics of the virtual subject when it participates in 2106 various activities in the cyberspace, and represent the trajectory 2107 and influence of the virtual subject in the cyberspace. 2109 Virtual subject access preferences 2111 1) Attribute name: exns_property: cogi_mappingentity_preference 2113 2) Attribute meaning: a frequently visited URL that characterizes a 2114 virtual subject 2116 3) Data type: string (XMLSchema. STRING) 2118 4) Constraint: optional 2120 5) Range of values: URL 2122 Total number of tweets for virtual subjects 2124 1) Attribute name: exns_property: cogi_mappingentity_blog_num 2126 2) Attribute meaning: total number of tweets that represent virtual 2127 subjects 2128 3) Data type: integer (XMLSchema.INT) 2130 4) Constraint: optional 2132 5) Range of values: greater than zero 2134 Original tweet proportion of virtual subject 2136 1) Attribute name: exns_property: cogi_mappingentity_blog_original 2138 2) Attribute meaning: the proportion of original tweets that 2139 characterize the virtual subject 2141 3) Data type: string (XMLSchema. STRING) 2143 4) Constraint: optional 2145 5) Range of values: percentage 2147 Number of concerns of the virtual subject 2149 1) Attribute name: exns_property: cogi_mappingentity_blog_concerns 2151 2) Attribute meaning: the number of concerns that characterize the 2152 essay of the virtual subject 2154 3) Data type: integer (XMLSchema.INT) 2156 4) Constraint: optional 2158 5) Range of values: greater than zero 2160 Number of fans of virtual subjects 2162 1) Attribute name: exns_property: cogi_mappingentity_blog_fans 2164 2) Attribute meaning: the number of fans who represent the virtual 2165 subject 2167 3) Data type: integer (XMLSchema.INT) 2169 4) Constraint: optional 2171 5) Range of values: greater than zero 2173 Topic engagement of virtual subjects 2174 1) Attribute name: exns_property: 2175 cogi_mappingentity_blog_participation 2177 2) Attribute meaning: characterizing the topic participation of the 2178 virtual subject 2180 3) Data type: string (XMLSchema. STRING) 2182 4) Constraint: optional 2184 5) Range of values: strong, general, indifferent 2186 Text usage preferences of virtual subjects 2188 1) Attribute name: exns_property: cogi_mappingentity_text_preference 2190 2) Attribute meaning: characterizing the text usage preferences of 2191 the virtual subject 2193 3) Data type: string (XMLSchema. STRING) 2195 4) Constraint: optional 2197 5) Range of values: URL 2199 Average dynamic number of virtual subjects 2201 1) Attribute name: exns_property: cogi_mappingentity_dynamic_num 2203 2) Attribute meaning: the average dynamic number of the virtual 2204 subject 2206 3) Data type: integer (XMLSchema.INT) 2208 4) Constraint: optional 2210 5) Range of values: greater than zero 2212 Number of comments by virtual subject 2214 1) Attribute name: exns_property: cogi_mappingentity_blog_comment 2216 2) Attribute meaning: the number of Weibo comments that represent the 2217 virtual subject 2219 3) Data type: string (XMLSchema. STRING) 2221 4) Constraint: optional 2222 5) Range of values: URL 2224 The tweet of the virtual subject 2226 1) Attribute name: exns_property: cogi_mappingentity_blog_ praisenum 2228 2) Attribute meaning: the microblogging point number that represents 2229 the virtual subject 2231 3) Data type: integer (XMLSchema.INT) 2233 4) Constraint: optional 2235 5) Range of values: greater than zero 2237 The number of tweets forwarded by the virtual principal 2239 1) Attribute name: exns_property: cogi_mappingentity_blog_forwardnum 2241 2) Attribute meaning: the number of tweets forwarded to the virtual 2242 subject 2244 3) Data type: integer (XMLSchema.INT) 2246 4) Constraint: optional 2248 5) Range of values: greater than zero 2250 6.3.4. Emotional attributes of the projected entity 2252 The emotional attributes of the projected entity are used to 2253 characterize the long-term, relatively stable inner emotional 2254 tendency and temperament characteristics of the projected entity 2255 formed in the growth and living environment, which can directly and 2256 indirectly affect the concept, view, thought and behavior of the 2257 projected entity in the cyberspace. The difference between emotional 2258 attributes and conceptual attributes is that emotional attributes are 2259 often contained by themselves, from the outside to the inside, while 2260 conceptual attributes are summarized from the inside to the outside 2261 for the characteristics of objects and objects. 2263 Reflexive spirit of the projection entity 2265 1) Attribute name: exns_property: cogi_mappingentity_spirit 2267 2) Attribute meaning: the degree of rebellious spirit of the 2268 projected entity 2269 3) Data type: string (XMLSchema. STRING) 2271 4) Constraint: optional 2273 5) Range of values: strong, general, weak 2275 Projection entity happiness 2277 1) Attribute name: exns_property: cogi_mappingentity_ happiness 2279 2) Attribute meaning: the degree of characterization of the happiness 2280 of the projected entity 2282 3) Data type: string (XMLSchema. STRING) 2284 4) Constraint: optional 2286 5) Range of values: strong, general, unhappy 2288 Projection entity pride 2290 1) Attribute name: exns_property: cogi_mappingentity_ride 2292 2) Attribute meaning: the degree of characterization of the happiness 2293 of the projected entity 2295 3) Data type: string (XMLSchema. STRING) 2297 4) Constraint: optional 2299 5) Range of values: strong, general, inferior 2301 Projection entity security 2303 1) Attribute name: exns_property: cogi_mappingentity_ safty 2305 2) Attribute meaning: the degree of security of the projected entity 2307 3) Data type: string (XMLSchema. STRING) 2309 4) Constraint: optional 2311 5) Range of values: strong, general, insecure 2313 Projection entity 2315 1) Attribute name: exns_property: cogi_mappingentity_ belonging 2316 2) Attribute meaning: the degree of attribution of the sense of 2317 belonging of the projected entity 2319 3) Data type: string (XMLSchema. STRING) 2321 4) Constraint: optional 2323 5) Range of values: strong, general, no sense of belonging 2325 Projection entity's sense of humor 2327 1) Attribute name: exns_property: cogi_mappingentity_ humor 2329 2) Attribute meaning: the degree of humor that characterizes the 2330 projected entity 2332 3) Data type: string (XMLSchema. STRING) 2334 4) Constraint: optional 2336 5) Range of values: humor, general, old-fashioned 2338 Projection entity's internal and external directions 2340 1) Attribute name: exns_property: cogi_mappingentity_ internal 2342 2) Attribute meaning: the degree of internal and external 2343 characterization of the projected entity 2345 3) Data type: string (XMLSchema. STRING) 2347 4) Constraint: optional 2349 5) Range of values: introverted, general, outgoing 2351 Projection entity's self-esteem 2353 1) Attribute name: exns_property: cogi_mappingentity_ selfrespect 2355 2) Attribute meaning: the degree of self-esteem of the projected 2356 entity 2358 3) Data type: string (XMLSchema. STRING) 2360 4) Constraint: optional 2362 5) Range of values: strong, general, no self-esteem 2363 Projection entity self-confidence 2365 1) Attribute name: exns_property: cogi_mappingentity_ selfconfidence 2367 2) Attribute meaning: the degree of self-confidence that 2368 characterizes the projected entity 2370 3) Data type: string (XMLSchema. STRING) 2372 4) Constraint: optional 2374 5) Range of values: strong, general, no confidence 2376 6.3.5. Conceptual attributes of the projected entity 2378 The conceptual attribute of the projected entity is used to describe 2379 the tensional views, opinions and choices of the projected entity for 2380 various objects, relationships, phenomena and laws in the real world, 2381 the virtual world and the spiritual world, which are the 2382 psychological basis for virtual subjects to carry out various 2383 activities in cyberspace. The difference between the conceptual 2384 attribute and the affective attribute is that the conceptual 2385 attribute must contain one or more object objects, which are 2386 concluded from the inner to the outer features, while the affective 2387 attribute is usually independent of the object objects, while the 2388 projected entity itself contains the mental state from the outer to 2389 the inner. 2391 Projection entity patriotism 2393 1) Attribute name: exns_property: cogi_mappingentity_patriotism 2395 2) Attribute meaning: the degree of love of the motherland that 2396 represents the projection entity 2398 3) Data type: string (XMLSchema. STRING) 2400 4) Constraint: optional 2402 5) Range of values: fanaticism, affection, generality, indifference, 2403 disgust 2405 The political claim of the projection entity 2407 1) Attribute name: exns_property: cogi_mappingentity_ political 2409 2) Attribute meaning: the political claim of the projection entity 2410 3) Data type: string (XMLSchema. STRING) 2412 4) Constraint: optional 2414 5) Range of values: no specific requirements 2416 The ideology orientation of the projection entity 2418 1) Attribute name: exns_property: cogi_mappingentity_ ideology 2420 2) Attribute meaning: the ideology of the projected entity 2422 3) Data type: string (XMLSchema. STRING) 2424 4) Constraint: optional 2426 5) Range of values: no specific requirements 2428 Party orientation of the projection entity 2430 1) Attribute name: exns_property: cogi_mappingentity_ party 2432 2) Attribute meaning: the party in which the projection entity 2433 participates 2435 3) Data type: string (XMLSchema. STRING) 2437 4) Constraint: optional 2439 5) Range of values: no specific requirements 2441 Social group orientation of projection entities 2443 1) Attribute name: exns_property: cogi_mappingentity_ group 2445 2) Attribute meaning: social groups in which the projection entity 2446 participates 2448 3) Data type: string (XMLSchema. STRING) 2450 4) Constraint: optional 2452 5) Range of values: no specific requirements 2454 Projection entity belief 2456 1) Attribute name: exns_property: cogi_mappingentity_ belief 2457 2) Attribute meaning: the belief of the projection entity 2459 3) Data type: string (XMLSchema. STRING) 2461 4) Constraint: optional 2463 5) Range of values: no specific requirements 2465 Projection entity values 2467 1) Attribute name: exns_property: cogi_mappingentity_ values 2469 2) Attribute meaning: the belief of the projection entity 2471 3) Data type: string (XMLSchema. STRING) 2473 4) Constraint: optional 2475 5) Range of values: no specific requirements 2477 Projection entity's outlook on life 2479 1) Attribute name: exns_property: cogi_mappingentity_ life 2481 2) Attribute meaning: the outlook of life of the projected entity 2483 3) Data type: string (XMLSchema. STRING) 2485 4) Constraint: optional 2487 5) Range of values: no specific requirements 2489 6.3.6. Attributes of the web service content 2491 The attributes of the web service content are used to characterize 2492 the types, scopes, capabilities, mechanisms of resource entities to 2493 generate, receive, accommodate, transmit and provide information 2494 content at the cognitive level. As the carrier of the data resource, 2495 the attributes of the network service content determine the basic 2496 information of relevant forms, structures, uses and virtual subjects 2497 of the data resources on it. 2499 The name of the service content 2501 1) Attribute name: exns_property: cogi_networkservice_ name 2503 2) Attribute meaning: the name of the external service provided by 2504 the network service 2505 3) Data type: string (XMLSchema. STRING) 2507 4) Constraint: optional 2509 5) Range of values: no specific requirements 2511 Service content function 2513 1) Attribute name: exns_property: cogi_networkservice_function 2515 2) Attribute meaning: external service function of network service 2517 3) Data type: string (XMLSchema. STRING) 2519 4) Constraint: optional 2521 5) Range of values: no specific requirements 2523 Audience of service content 2525 1) Attribute name: exns_property: cogi_networkservice_ audience 2527 2) Attribute meaning: the audience of the external service provided 2528 by the network service 2530 3) Data type: string (XMLSchema. STRING) 2532 4) Constraint: optional 2534 5) Range of values: no specific requirements 2536 Publisher of service content 2538 1) Attribute name: exns_property: cogi_networkservice_ publisher 2540 2) Attribute meaning: the publisher of the external service of the 2541 network service 2543 3) Data type: string (XMLSchema. STRING) 2545 4) Constraint: optional 2547 5) Range of values: no specific requirements 2549 Editor of the service content 2551 1) Attribute name: exns_property: cogi_networkservice_ editor 2552 2) Attribute meaning: the editor of the external service of the 2553 network service 2555 3) Data type: string (XMLSchema. STRING) 2557 4) Constraint: optional 2559 5) Range of values: no specific requirements 2561 Form of service content 2563 1) Attribute name: exns_property: cogi_networkservice_ type 2565 2) Attribute meaning: the form of external service provided by 2566 network service 2568 3) Data type: string (XMLSchema. STRING) 2570 4) Constraint: optional 2572 5) Range of values: no specific requirements 2574 Service content release time 2576 1) Attribute name: exns_property: cogi_networkservice_ date 2578 2) Attribute meaning: the release time of the content of the network 2579 service 2581 3) Data type: string (XMLSchema. STRING) 2583 4) Constraint: optional 2585 5) Range of values: meet the GB/T 7408-1994 standard specification 2587 6.3.7. Attributes of the data resource content 2589 The attributes of the data resource content are used to characterize 2590 the various characteristics that the data resource can be recognized 2591 by other projected entities at the content level. It can be used to 2592 establish a wide range of correlations between content and content, 2593 between content and resources, and between content and projected 2594 entities/virtual subjects. 2596 Content publisher 2598 1) Attribute name: exns_property: cogi_content_ publisher 2599 2) Attribute meaning: the content of the cloth 2601 3) Data type: string (XMLSchema. STRING) 2603 4) Constraint: optional 2605 5) Range of values: no specific requirements 2607 Speed of content 2609 1) Attribute name: exns_property: cogi_content_ speed 2611 2) Attribute meaning: the speed of content propagation 2613 3) Data type: floating point number (XMLSchema.FLOAT) 2615 4) Constraint: optional 2617 5) Range of values: no specific requirements 2619 Emotional color of content 2621 1) Attribute name: exns_property: cogi_content_ emotion 2623 2) Attribute meaning: the emotional color conveyed by the content 2625 3) Data type: string (XMLSchema. STRING) 2627 4) Constraint: optional 2629 5) Range of values: no specific requirements 2631 Content impact 2633 1) Attribute name: exns_property: cogi_content_ effect 2635 2) Attribute meaning: the social influence brought by the content 2637 3) Data type: string (XMLSchema. STRING) 2639 4) Constraint: optional 2641 5) Range of values: no specific requirements 2643 Content evaluation 2645 1) Attribute name: exns_property: cogi_content_ evaluate 2646 2) Attribute meaning: evaluation of content 2648 3) Data type: string (XMLSchema. STRING) 2650 4) Constraint: optional 2652 5) Range of values: no specific requirements 2654 Content operation form 2656 1) Attribute name: exns_property: cogi_content_ form 2658 2) Attribute meaning: the operating form of the content 2660 3) Data type: string (XMLSchema. STRING) 2662 4) Constraint: optional 2664 5) Range of values: no specific requirements 2666 Legality of content 2668 1) Attribute name: exns_property: cogi_content_ legality 2670 2) Attribute meaning: whether the content complies with relevant laws 2671 and regulations 2673 3) Data type: Boolean (XMLSchema. BOOLEN) 2675 4) Constraint: optional 2677 5) Range of values: no specific requirements 2679 Value orientation of content 2681 1) Attribute name: exns_property: cogi_content_ value 2683 2) Attribute meaning: content value orientation 2685 3) Data type: string (XMLSchema. STRING) 2687 4) Constraint: optional 2689 5) Range of values: no specific requirements 2691 Content ethics 2693 1) Attribute name: exns_property: cogi_content_ ethics 2694 2) Attribute meaning: the ethical influence of content 2696 3) Data type: string (XMLSchema. STRING) 2698 4) Constraint: optional 2700 5) Range of values: no specific requirements 2702 Field of content 2704 1) Attribute name: exns_property: cogi_content_ domain 2706 2) Attribute meaning: the domain of the content 2708 3) Data type: string (XMLSchema. STRING) 2710 4) Constraint: optional 2712 5) Range of values: no specific requirements 2714 Political color of content 2716 1) Attribute name: exns_property: cogi_content_ political 2718 2) Attribute meaning: the political color of content 2720 3) Data type: string (XMLSchema. STRING) 2722 4) Constraint: optional 2724 5) Range of values: no specific requirements 2726 Ideology of content 2728 1) Attribute name: exns_property: cogi_content_ ideology 2730 2) Attribute meaning: the ideology of content reaction 2732 3) Data type: string (XMLSchema. STRING) 2734 4) Constraint: optional 2736 5) Range of values: no specific requirements 2738 Authenticity of content 2740 1) Attribute name: exns_property: cogi_content_ truth 2741 2) Attribute meaning: the authenticity of the content 2743 3) Data type: string (XMLSchema. STRING) 2745 4) Constraint: optional 2747 5) Range of values: no specific requirements 2749 6.4. social domain attributes 2751 The social domain attribute is used to describe various social groups 2752 (especially virtual crowd) with strong sociality in the cyberspace, 2753 and to describe the new features that emerge after multiple virtual 2754 subjects gather into groups due to internal factors such as emotions 2755 and concepts, or external factors such as events and pressures. 2757 6.4.1. Attributes of virtual crowd 2759 The virtual crowd refers to a new type of organization with the same 2760 interest and similar ideas formed by the virtual network as the 2761 medium and relying on the network social media. It consists of two 2762 layers: one is the networking of the realistic group, which is the 2763 extension of the realistic group in the cyberspace; the second is the 2764 group born based on the network, that is, the group bound by and 2765 because of the network. 2767 Organization name of the virtual crowd 2769 1) Attribute name: exns_property: soci_virtualcrowd_ name 2771 2) Attribute meaning: the organization name of the virtual crowd 2773 3) Data type: string (XMLSchema. STRING) 2775 4) Constraint: optional 2777 5) Range of values: no specific requirements 2779 Common interest of the virtual crowd 2781 1) Attribute name: exns_property: soci_virtualcrowd _ support 2783 2) Attribute meaning: the common interest of the virtual crowd, the 2784 source of formation 2786 3) Data type: string (XMLSchema. STRING) 2788 4) Constraint: optional 2789 5) Range of values: no specific requirements 2791 Virtual crowd ID 2793 1) Attribute name: exns_property: soci_virtualcrowd _ id 2795 2) Attribute meaning: the unique ID of the virtual crowd in 2796 cyberspace 2798 3) Data type: integer (XMLSchema. INT) 2800 4) Constraint: optional 2802 5) Range of values: no specific requirements 2804 Virtual crowd gathering place 2806 1) Attribute name: exns_property: soci_virtualcrowd _ place 2808 2) Attribute meaning: virtual crowd in the network gathering place, 2809 WeChat group / Weibo / forum / chat room / live room 2811 3) Data type: string (XMLSchema. STRING) 2813 4) Constraint: optional 2815 5) Range of values: no specific requirements 2817 Virtual population connection strength 2819 1) Attribute name: exns_property: soci_virtualcrowd _ link 2821 2) Attribute meaning: the strength of the connection of the virtual 2822 crowd 2824 3) Data type: string (XMLSchema. STRING) 2826 4) Constraint: optional 2828 5) Range of values: compact, general, loose 2830 Opinion leader of the virtual crowd 2832 1) Attribute name: exns_property: soci_virtualcrowd _ leader 2834 2) Attribute meaning: the leader of group thinking, behavior or 2835 speech 2836 3) Data type: string (XMLSchema. STRING) 2838 4) Constraint: optional 2840 5) Range of values: no specific requirements 2842 Secondary leader of the virtual crowd 2844 1) Attribute name: exns_property: soci_virtualcrowd _ subleader 2846 2) Attribute meaning: the second-level leader of group thinking, 2847 behavior or speech 2849 3) Data type: string (XMLSchema. STRING) 2851 4) Constraint: optional 2853 5) Range of values: no specific requirements 2855 Active time of the virtual crowd 2857 1) Attribute name: exns_property: soci_virtualcrowd _ activetime 2859 2) Attribute meaning: the usual time for group status update 2861 3) Data type: string (XMLSchema. STRING) 2863 4) Constraint: optional 2865 5) Range of values: meet the GB/T 7408-1994 standard specification 2867 Offline activities of virtual people 2869 1) Attribute name: exns_property: soci_virtualcrowd _ Offline 2871 2) Attribute meaning: whether offline activities 2873 3) Data type: Boolean (XMLSchema. BOOLEN) 2875 4) Constraint: optional 2877 5) Range of values: no specific requirements 2879 Virtual population mobility 2881 1) Attribute name: exns_property: soci_virtualcrowd _ mobility 2882 2) Attribute meaning: stability of group members, strong, medium and 2883 weak 2885 3) Data type: string (XMLSchema. STRING) 2887 4) Constraint: optional 2889 5) Range of values: no specific requirements 2891 Virtual population vulnerability 2893 1) Attribute name: exns_property: soci_ virtualcrowd _ vulnerability 2895 2) Attribute meaning: the group members' thoughts are shaken, strong, 2896 medium and weak 2898 3) Data type: string (XMLSchema. STRING) 2900 4) Constraint: optional 2902 5) Range of values: no specific requirements 2904 7. Acknowledgements 2906 With gratitude, the authors would like to thank the support, 2907 encouragement, and help of China Electronic Technology Group 2908 Corporation thirtieth Research institute and Tsinghua.University. 2909 And we thanks to the following persons: Jilong Wang, Congcong Miao, 2910 Yujin Zhou,Jiang Zhang, Hui Yang, devoted their hardworking and 2911 effort. 2913 8. IANA Considerations 2915 This memo includes no request to IANA. 2917 9. Security Considerations 2919 This document only defines a framework for network resource property 2920 description. This document itself does not directly introduce 2921 security issues. 2923 10. Normative References 2925 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate 2926 Requirement Levels", RFC 2119, March 1997. 2928 [RFC3275] Eastlake 3rd, D., "Extensible Markup Language) XML- 2929 Signature Syntax and Processing", RFC 3275, March 2002. 2931 [RFC3688] Mealling, M., "The IETF XML Registry", RFC 3688, January 2932 2004. 2934 [RFC3870] Swartz, A., "Application/rdf+xml Media Type Registration", 2935 RFC 3870, September 2004. 2937 Authors' Addresses 2939 Zhi Sun (editor) 2940 CETC 30 2941 Chengdu 610000 2942 China 2944 Email: sunzhi1019@163.com 2946 Da He (editor) 2947 CETC 30 2948 Chengdu 610000 2949 China 2951 Email: edawrdheda@outlook.com 2953 Xian Luo (editor) 2954 CETC 30 2955 Chengdu 610000 2956 China 2958 Email: luoxian@cetcsc.com 2960 Jianfeng Chen (editor) 2961 CETC 30 2962 Chengdu 610000 2963 China 2965 Email: atrix@163.com 2967 Rui Xu (editor) 2968 CETC 30 2969 Chengdu 610000 2970 China 2972 Email: jasmine_x@163.com 2973 Jilong Wang (editor) 2974 Tsinghua University 2975 Beijing 100084 2976 China 2978 Email: wjl@tsinghua.edu.cn 2980 Congcong Miao (editor) 2981 Tsinghua University 2982 Beijing 100084 2983 China 2985 Email: 1010988944@qq.com