Re: [apps-discuss] Fwd: New Version Notification for draft-shelby-exi-registration-01.txt
ht@inf.ed.ac.uk (Henry S. Thompson) Wed, 11 April 2012 15:15 UTC
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To: Carsten Bormann <cabo@tzi.org>
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From: ht@inf.ed.ac.uk
Date: Wed, 11 Apr 2012 16:15:12 +0100
In-Reply-To: <FBCADBF9-D6FB-4E0D-9668-F5B3EF744037@tzi.org> (Carsten Bormann's message of "Wed, 11 Apr 2012 14:04:05 +0200")
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Cc: apps-discuss@ietf.org
Subject: Re: [apps-discuss] Fwd: New Version Notification for draft-shelby-exi-registration-01.txt
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Carsten Bormann writes: > EXI requires out of band information to use the "Schema-Informed" > mode. In the Internet, This would normally be provided in an > Internet media-type definition. The media-type definition may also > want to constrain the allowable values for the numerous options EXI > provides, allowing for constrained implementations of EXI. Your conclusion (use media type) doesn't follow. Consider the analogy of Content-Encoding: gzip -- suppose gzip provided improved performance based on the decade in which the encoded document was written, since natural language priors slowly shift over time. Now decoding requires OOB information about document creation date. How shall we provide it. I know -- we'll define media types application/...+gzip for every decade of interest! I hope it's obvious that would be a mistake. . . If decoding requires some parameters, surely the right thing to do is to transmit them in the obvious place, i.e. in the response message header. Either use the Content-Encoding (and Accept-Encoding) header itself, by registering a new Content-Coding value [1] (foo+exi), or (better) ask the W3C EXI WG to publish a Note defining an extension-header for specifying or requesting a schemaID (and more generally, perhaps, other properties specifiable in the EXI Options docuemtns). Not only would the second option fit the architecture better, it would remove the necessity for publishing a new RFC every time you update the relevant schema! ht [1] http://www.iana.org/assignments/http-parameters/http-parameters.xml -- Henry S. Thompson, School of Informatics, University of Edinburgh 10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440 Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk URL: http://www.ltg.ed.ac.uk/~ht/ [mail from me _always_ has a .sig like this -- mail without it is forged spam]
- Re: [apps-discuss] New Version Notification for d… Mark Nottingham
- [apps-discuss] Fwd: New Version Notification for … Zach Shelby
- Re: [apps-discuss] New Version Notification for d… Yusuke DOI
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] New Version Notification for d… Mark Nottingham
- Re: [apps-discuss] New Version Notification for d… Paul E. Jones
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] New Version Notification for d… Zach Shelby
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Yusuke DOI
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] Fwd: New Version Notification … Carsten Bormann
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] New Version Notification for d… Tony Hansen
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Carsten Bormann
- Re: [apps-discuss] Fwd: New Version Notification … Tony Hansen
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] Fwd: New Version Notification … Carsten Bormann
- Re: [apps-discuss] Fwd: New Version Notification … Carsten Bormann
- Re: [apps-discuss] Fwd: New Version Notification … Tony Hansen
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] Fwd: New Version Notification … Tony Hansen
- Re: [apps-discuss] Fwd: New Version Notification … Carsten Bormann
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] New Version Notification for d… Mark Nottingham
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Zach Shelby
- Re: [apps-discuss] Fwd: New Version Notification … Tony Hansen
- Re: [apps-discuss] Fwd: New Version Notification … Henry S. Thompson
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Carine Bournez
- Re: [apps-discuss] Fwd: New Version Notification … Julian Reschke
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] Fwd: New Version Notification … Martin J. Dürst
- Re: [apps-discuss] Fwd: New Version Notification … Ned Freed
- Re: [apps-discuss] New Version Notification for d… Carsten Bormann
- Re: [apps-discuss] New Version Notification for d… Cullen Jennings
- Re: [apps-discuss] New Version Notification for d… Peter Saint-Andre
- Re: [apps-discuss] New Version Notification for d… Ned Freed
- Re: [apps-discuss] New Version Notification for d… Zach Shelby
- Re: [apps-discuss] New Version Notification for d… Henry S. Thompson
- Re: [apps-discuss] New Version Notification for d… Tony Hansen
- Re: [apps-discuss] New Version Notification for d… Cullen Jennings
- Re: [apps-discuss] New Version Notification for d… Carsten Bormann
- Re: [apps-discuss] New Version Notification for d… Ned Freed
- Re: [apps-discuss] New Version Notification for d… Cullen Jennings
- Re: [apps-discuss] New Version Notification for d… Cullen Jennings
- Re: [apps-discuss] New Version Notification for d… Carsten Bormann
- Re: [apps-discuss] New Version Notification for d… Carsten Bormann
- Re: [apps-discuss] New Version Notification for d… Cullen Jennings
- Re: [apps-discuss] New Version Notification for d… Ned Freed
- Re: [apps-discuss] New Version Notification for d… Cullen Jennings
- Re: [apps-discuss] New Version Notification for d… Ned Freed