This use case is similar to 1.1 in a number of ways, and perhaps the data model would be the same. However, the likely scale of tagging is much larger (perhaps selection of O(100,000) items to populate a virtual subject library from the central library catalog) and does not include the need for detailed curation (textual annotation, ordering, structure, description). It is expected that such tagging would also be maintained/curated over long periods whereas virtual collections may be disposable or ephemeral. It is also expected that creation and maintenance might be a collaborative process.
There are possible ties to shared selection work such as that between Stanford and Berkeley, and between Columbia and Cornell.
A. Selection of items for a virtual library which then appears in a centralized discovery interface: Subject librarians select a items to tag individually and through queries available in the discovery interface (such as subject classification range, bibid range). They tag items with a tag meaning “included in university X, virtual library Y”. The tag information is stored as LD separately from the catalog records by and refer to them by URI. The discovery system integrates this tag information in its indexing process and produces a search facet for “virtual library Y”.
Completed: The open annotation gem provides the infrastructure for semantic tags for controlled vocabularies. Some planning has occurred to identify rules (i.e., bibid range, LOC call number range, subject classification, controlled vocabulary value, etc.) based on work in the CuLLR system at Cornell.
Incomplete: Ability to specify semantic tags and selection rules are not implemented. Integration into the catalog with search facets is not implemented. Batch processing tools are not implemented.
B. Engineering librarians build virtual reference shelf: In moving from a physical engineering library to a virtual library the engineering librarians decide to replicate online the popular shelf of key engineering reference handbooks that used to in the physical engineering library. In collaboration with the team providing their local discovery and access system, they decide on a tag that will be used to create an "Engineering Handbooks" facet. Tags are internally represented as URIs though the UI will likely show a human readable string. As the different librarians are specialists in different subject areas they decide to work together to tag items in their respective areas. One librarian creates the tag. They each then tag items from the catalog. These tags are then used in the local discovery and access system to populate the "Engineering Handbooks" facet.
Completed: The open annotation gem provides the infrastructure for semantic tags for controlled vocabularies where semantic tags are represented as URIs
Incomplete: Authentication and access controls, roles, and groups are not implemented, which is required for collaborative building of curated library collections. Questioning Authority gem will likely be used for the encoding of controlled vocabularies. There isn't a user interface for setting up questioning authority.
- Catalog records
- Metadata for any other collections from which items are to be selected
- Librarian<->library relationships (perhaps including editing permissions information)