[OGSA-AUTHZ] Use of Multiple IdPs/AAs

Dear Colleague The UK JISC and US Internet2 would like to find out user needs and requirements for the use of attributes, issued by multiple authorities, in federated authorisation. The ultimate intention is to develop open source software that satisfies these requirements, for free distribution globally. It would greatly help us if you could circulate this questionnaire far and wide, and answer it yourself if you feel able. The questionnaire is unlimited in its circulation, but we would like answers by 23 April. sorry for any cross postings. yours sincerely David Chadwick and Nate Klingenstein