ISO/IEC 11179, Information Technology —
Metadata Registries (MDR)

	ISO/IEC 11179-1, Framework, introduces and discusses fundamental ideas of data elements, value domains, data element concepts, conceptual domains, and classification schemes essential to the understanding of this set of standards and provides the context for associating the individual parts of ISO/IEC 11179.
	ISO/IEC 11179-2, Classification, provides a conceptual model for managing classification schemes. There are many structures used to organize classification schemes and there are many subject matter areas that classification schemes describe. So, this Part also provides a two-faceted classification for classification schemes themselves.
	ISO/IEC 11179-3, Registry Metamodel and Basic Attributes, specifies a conceptual model for a metadata registry. It is limited to a set of basic attributes for data elements, data element concepts, value domains, conceptual domains, classification schemes, and other related classes, called administered items. The basic attributes specified for data elements in ISO/IEC 11179-3:1994 are provided in this revision.
	ISO/IEC 11179-4, Formulation of Data Definitions, provides guidance on how to develop unambiguous data definitions. A number of specific rules and guidelines are presented in ISO/IEC 11179-4 that specify exactly how a data definition should be formed. A precise, well-formed definition is one of the most critical requirements for shared understanding of an administered item; well-formed definitions are imperative for the exchange of information. Only if every user has a common and exact understanding of the data item can it be exchanged trouble-free.
	ISO/IEC 11179-5, Naming and Identification Principles, provides guidance for the identification of administered items. Identification is a broad term for designating, or identifying, a particular data item. Identification can be accomplished in various ways, depending upon the use of the identifier. Identification includes the assignment of numerical identifiers that have no inherent meanings to humans; icons (graphic symbols to which meaning has been assigned); and names with embedded meaning, usually for human understanding, that are associated with the data item's definition and value domain.
	ISO/IEC 11179-6, Registration, provides instruction on how a registration applicant may register a data item with a central Registration Authority and the allocation of unique identifiers for each data item. Maintenance of administered items already registered is also specified in this document.

11179-1: Framework

Current Revision

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11179-2: Classification

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11179-3: Registry Metamodel and Basic Attributes

Current Revision

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11179-4: Formulation of Data Definitions

Current Revision

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11179-5: Naming and Identification Principles

Current Revision

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11179-6: Registration

Current Revision

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