Schema, or scheme, also called metadata schema, is a set of metadata elements designed for a specific purpose, such as describing a particular information resource, defining a framework for representing metadata. The definition or meaning of the elements themselves is known as the semantics of the schema. The values given to metadata elements are the content. Metadata schemas generally specify names of elements and their semantics. Examples of metadata schemas are Dublin Core, ESE, EDM, PICO.
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See also: Element, Metadata
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