Roles for SAML 2.0 Metadata

Colleagues -
During our focus group discussion of today (December 16), we recognized the
need for specifying metadata for various roles. Our discussion lead us to
believe that SAML 2.0 metadata should recognize the following roles:
1. Identity provider
2. Service provider
3. Attribute provider

Do people have any thoughts/comments on this matter?

Thanks,
Jahan

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Jahan Moreh
Chief Security Architect
310.286.3070