1 Scope
This document provides a specification for an extension to a metadata registry (MDR),
as specified in ISO/IEC 11179‑3:2023, in which metadata that describes concept systems can be registered.
The specification in this document, together with the relevant clauses of the specification
in ISO/IEC 11179‑3, provides the ability to record the following metadata:
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— concept systems and associated concepts;
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— relations among concepts in a concept system;
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— assertions about concepts in a concept system.
The metamodel in this document is intended to support the full description of a concept system, including ontologies.
Where there is a requirement to register an ontology where the details are defined
elsewhere, consider using ISO/IEC 19763‑3[8] instead.