Basic Scenario +-------------+ 1: Authentication +------------+ | |<----------------->| Asserting | | Subject (S) | | Party | | |<------------------| (AP) | +-------------+ 2: SAML Assertion +------------+ | | 3:| Service Request | + Assertion v +-------------+ +------------+ | Relying | 4: Policy | Policy | | Party |<------------------| Server | | (RP) | | (PS) | +-------------+ +------------+ |