Metadata refers to data that describes or characterizes other data or information. It constitutes a crucial aspect of data organization and management. Examples of metadata include information about table structures in databases, field descriptions in files, as well as tags, categories, and properties assigned to documents. Metadata is used to identify, classify, and understand data, which facilitates its management, retrieval, and analysis. It is a key element in the context of digital information, data archiving, and effective information resource management.
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