Usually, Dewey numbers themselves provide metadata for (other) information resources, acting as a value vocabulary for metadata element sets. However, there are also cases where Dewey numbers and editions of the DDC are not the source, but rather the focus of metadata. Number-level and edition-level metadata helps establish relationships between and provides additional information about DDC data, both of which can enhance the utility of Dewey in a variety of scenarios.
Specifically, the talk focuses on three topics of DDC metadata:
1. How to provide provenance metadata for machine-generated Dewey numbers and other pieces of classification information, and how to effectively express data provenance in the context of a MARC record.
2. How metadata about Dewey editions can be used to establish relationships between translations and other versions of the classification.
3. How metadata about Dewey number components provided by 085 fields can enhance the use of Dewey numbers in information discovery.