The Attribute Registry V 1.0 is one of the early deliverables from the Scalable Privacy project.
The core data elements are attributes, each of which comes from one of a defined set of specifications or standards. The images in this overview were taken directly from the ontology tool, Protégé, used to maintain the registry.
Each attribute is associated with the specification that defines it. For example, the OpenID Connect specification covers the following attributes: