Dublin Core Metadata Element Set (DCMES)

Maintained by Dublin Core Metadata Initiative (DCMI).

The Dublin Core Metadata Element Set (DCMES) is also known as Simple Dublin Core. Simple Dublin Core is a basic 15-element set designed to represent core features of resources across all formats. It is standardized as ISO 15836-2003, ANSI/NISO Z39.85-2007, and IETF RFC 5013. The Dublin Core Usage Guidelines sometimes suggest (but do not require) specific content guidelines or controlled vocabularies. Simple Dublin Core is widely known as the baseline metadata format required for all resources shared via Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH). Encoding of the DCMES in HTML tags was popular in the early days of search engines, but today most search engines prefer to weigh page text and linking patterns more heavily then page creator-supplied structured metadata.