OB 3.0: Clarify definition of Publisher

[amiller-ims]

Working notes from Google Doc:

The Publisher role is different from the Issuer role. The organization in the Issuer role asserts a claim that the recipient achieved an achievement. The organization in the Publisher role asserts a claim that the set of assertions within the CLR is complete or whole from the publisher’s point of view, and that they are all about the same Learner even if the individual assertions use different identities for the recipient.

For example a Publisher might claim, “This CLR represents the complete transcript for Ellis at this university”; or “This CLR represents the complete work history of Ari at this company”. The organization or person that receives the CLR can verify that the claim has not been tampered with and decide if they trust the Publisher to make that claim.

Publisher	Issuer	Notes and Sources
District	Individual School	North Dakota use case (Marty Reed)
Asserts recipient achieved achievement	Asserts claim that set of assertions is complete or whole	Needs Clarification in CLR 2.0 Work Group (Andy Miller)
Office of the Registrar at X Institution	Y School within X Institution	HE use case (Mark McConahay)

[amiller-ims]

Term definition in spec: https://imsglobal.github.io/openbadges-specification/ob_v3p0.html#dfn-publisher