these use cases are work in progress
Cluster 1: Bibliographic + curation data
Use Case 1.1: Build a virtual collection
Use Case 1.2: Tag scholarly information resources to support reuse
Cluster 2: Bibliographic + person data
Cluster 3: Leveraging external data including authorities
Cluster 4: Leveraging the deeper graph (via queries or patterns)
Cluster 5: Leveraging usage data
Cluster 6: Three-site services
Earlier use cases work