OASIS provide high-level and technical overviews of SAML on their website: https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=securityImage Removed.
Shibboleth System 2.x and minor releases
Shibboleth System 1.3 and older
Not supported (Shibboleth 1.3 had its end-of-life on June 30, 2010)
Other SAML-based, federated identity management systems
Other software systems interoperable with SAML 2.0 and the Shibboleth architecture specifications may be used; however, such systems are not actively supported by Tuakiri support, nor tested within the federation operation infrastructure. Active support for systems other than Shibboleth will be considered as participant needs arise.