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Higher Education
- the eduPerson schema
- the SCHema for ACademia effort (SCHAC) – Europe
Commercial
- ??? OIX
Government
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- Finland's Suomi.fi
- British Columbia, Canada attributes about people and their relationships with others in a government context and an initial set of attributes or claims
Query Language
With no standard, normative query language, there is no way to ask a broad set of identity providers anything about the entities they are authoritative for. When a service provider needs to ask dozens of identity providers across the globe "Is this person of legal age to use my service?" the attribute space has no answer.
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