scope:

This International Standard specifies a metadata system for describing multimedia content. This document specifies the Multimedia Description Schemes (MDS) description tools (Description Schemes, Descriptors, and datatypes) that comprise ISO/IEC 15938-5. The following set of subclauses are provided for each MDS description tool, where optional subclauses are indicated as (optional): - Syntax: specifies the normative syntax of the description tool using Description Definition Language (DDL) (see ISO/IEC 15938-2). - Binary syntax (optional): specifies the normative binary representation for the description tool, where relevant. If a binary syntax is not specified, then the binary coding method of ISO/IEC 15938-1 shall apply for the description tool. - Semantic: specifies the normative semantics of the description tool and each of its components (attributes and elements). - Informative examples (optional): provides informative examples that illustrate the use or instantiation of the description tool in creating descriptions.