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- Is SAML the only protocol we need for moving identity attributes between parties?
- If we need another one, say for provisioning and provisioning-like scenarios, is SCIM in the ballpark?
- If so, would SAML & SCIM+ cover the waterfront?
- What kinds of attribute metadata are required to fulfill identified requirements?
- Will there be as many metadata schema as there are attribute schema, or does metadata's higher level of abstraction allow convergence on a (core) generic set of metadata elements?
- If the domain of interest is attributes and associated metadata, is RDF a good logical model?
- Is attribute exchange a first rung on an evolutionary ladder that reaches up to something like a distributed and federated event-driven model of application/service integration?