OCLC, the global leader in library cataloging and metadata services, has taken a significant step forward in its linked data strategy by creating uniform resource identifiers (URIs) for Dewey Decimal Classification (DDC) numbers. This development is set to enhance the interconnectedness of library data by linking broad classification numbers to specific subject topics, thereby enriching knowledge discovery.
The newly created Dewey linked data serves as the foundation for "concept" entities, providing subject classifications to Works entities within WorldCat Entities. This addition introduces a new layer of relationships within knowledge graphs, which are instrumental in driving content discovery across library systems.
By utilizing machine-actionable and web-friendly URIs, Dewey linked data can seamlessly connect across established classification systems and subject headings, such as the Faceted Application of Subject Terminology (FAST) linked data. The OCLC Research team has played a key role in mapping Dewey classifications to FAST topical headings, further integrating these relationships into the Dewey linked data framework.
A base set of Dewey linked data is openly accessible to anyone, enabling libraries and other institutions to begin incorporating Dewey URIs into their local data management and discovery systems. For those subscribing to WebDewey, a more comprehensive range of Dewey linked data URIs and associated metadata is available.
Moreover, OCLC has introduced two new APIs that simplify the integration of Dewey linked data into various systems and services. These APIs are accessible to WebDewey users as part of their subscription, providing enhanced tools for managing and leveraging linked data.
This initiative is part of OCLC's broader commitment to advancing the linked data infrastructure, offering libraries more powerful tools for organizing and accessing information.
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