OAuth

A protocol that obtains and uses tokens to access web-based and non-web-based IT services. ​


Ontology

Formal naming and definition of the (RDM) entity types​, properties, and interrelationships of the entities that really or fundamentally exist for a particular domain of discourse.


​​​​​​​​​Open Data Access

Making data available without restriction. 


OpenID Connect

A protocol to authenticate users, built on top of the OAuth protocol for authorization.​
 

Opt-in

A consent mechanism where​ an active choice must be made every time to participate.


Opt-out

A consent mechanism where consent is implied unless an active choice is made not to participate.


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