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Data dictionary. A data dictionary, or metadata repository, as defined in the IBM Dictionary of Computing, is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format". [1] Oracle defines it as a collection of tables with metadata. The term can have one of several closely ...
A data definition specification is the foundation of metadata for scientific data archiving. The Metadata Encoding and Transmission Standard (METS) uses one principle of a DDS: consistent use of key terms to catalog digital objects for global use. The METS schema is a flexible mechanism for encoding descriptive, administrative and structural ...
The IEC 61360 series is structured into different parts: IEC 61360-1 provides a detailed introduction to the structure of the dictionary and its use. [1] IEC 61360-2 specifies the detailed dictionary data model and IEC 61360-6 stipulates quality criteria for the content of the dictionary. [1] The data model defined in IEC 61360-2 is also ...
Data element definition. In metadata, a data element definition is a human readable phrase or sentence associated with a data element within a data dictionary that describes the meaning or semantics of a data element. Data element definitions are critical for external users of any data system. Good definitions can dramatically ease the process ...
Data item descriptions. A United States data item description ( DID) is a completed document defining the data deliverables required of a United States Department of Defense contractor. [1] A DID specifically defines the data content, format, and intended use of the data with a primary objective of achieving standardization objectives by the U ...
eOTD is the acronym for the ECCMA Open Technical Dictionary. The dictionary is a language-independent database of concepts with associated terms, definitions and images used to unambiguously describe individuals, organizations, locations, goods, services, processes, rules, and regulations. The eOTD is maintained by the Electronic Commerce Code ...
A data element name is a name given to a data element in, for example, a data dictionary or metadata registry.In a formal data dictionary, there is often a requirement that no two data elements may have the same name, to allow the data element name to become an identifier, though some data dictionaries may provide ways to qualify the name in some way, for example by the application system or ...
IBM's IMS dictionary is a DBMS with a "passive" dictionary. To use the IMS DBMS, it is not necessary to use the separate IMS data dictionary product. An "active" dictionary would be tightly coupled to its DMBS engine. Passive dictionaries could be more flexible in supporting the many different DBMSs & file types in use in a typical organization.
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