- The resource server treats a "wildcarded" URI as being a single complex resource for authorization server purposes; this translates to individual registration.
- To enable a human resource owner to share out resources one at a time using a Share button, the resource server would probably need individual registration at stage 2. But to enable "relationship-driven sharing" of (say) multiple smart device resources at once, the resource server might want to register as many resources as are available in a household. For industrial IoT use cases, the number of resources to register could climb
- In discussions about the FHIR API for healthcare, resource registrations might "pair" with patterns of permission requests that anticipate a need for the requesting side to gain access to certain clusters of resources, say, three related resources if ever a client attempts to access one of them. (E.g., each of the use cases in the GDoc imagining RS permission requests for various APIs gives us a way of imagining finite numbers.)
Rather than the resource description document pointing to a series of scope URIs that must be dereferenced (as was the case in UMA V1.0.x), the resource server in UMA V2.0 can instead make use of the OpenID Connect discovery document and its
scopes_supported metadata item, which, when filled with (the same) scope description document URIs, allows for development-time discovery of the necessary scope information.