yup. EACH Fed would need to mandate ITS attributes, which would help the local IdP make the local, contextualised mapping of what the Fed/ particular SP wants against what users at IdP-land normally speak about, with all of the padding to protect them from too much detail when they don't want it. s. Sean Mehan Head of e-Frameworks Learning and Information Services UHI - www.uhi.ac.uk www.weblogs.uhi.ac.uk/sm00sm/ -------------------- GuanXi - a SAML/Shibboleth IdP, SP and Toolkit - http:// guanxi.sourceforge.net/ -------------------- Sakai - a Free VLE/VRE - http://sakaiproject.org/ -------------------- Bodington - a Free VLE - http://bodington.sourceforge.net/ On 14 Jun 2007, at 11:04, Richard Dunning wrote: > Is this not a case for the Federation mandating attributes? > > There is a potential here for IdPs having to set up bilateral > agreements > with all SPs they wish to connect to...