Metadata management

Metadata management involves managing metadata about other data, whereby this 'other data' is generally referred to as content data. The term is used most often in relation to digital media, but older forms of metadata are catalogs, dictionaries, and taxonomies. For example, the Dewey Decimal Classification is a metadata management systems developed in 1876 for libraries.This picture of the Barcelona Cathedral was uploaded to the English Wikipedia in 2003 to illustrate its Wikipedia article, and was transferred to Wikimedia Commons in 2007 so it could be used in other language versions of Wikipedia.This screenprint of the Catalan Wikipedia page on the cathedral features several photos including this one. The screenprint was uploaded to Wikimedia Commons in 2007 soon after the photo was available there, but that article on the Catalan Wikipedia has since been expanded. Metadata management involves managing metadata about other data, whereby this 'other data' is generally referred to as content data. The term is used most often in relation to digital media, but older forms of metadata are catalogs, dictionaries, and taxonomies. For example, the Dewey Decimal Classification is a metadata management systems developed in 1876 for libraries. Metadata management goes by the end-to-end process and governance framework for creating, controlling, enhancing, attributing, defining and managing a metadata schema, model or other structured aggregation system, either independently or within a repository and the associated supporting processes (often to enable the management of content). For web-based systems, URLs, images, video etc. may be referenced from a triples table of object, attribute and value. With specific knowledge domains, the boundaries of the metadata for each must be managed, since a general ontology is not useful to experts in one field whose language is knowledge-domain specific.