scope:

1.1 Organization of the document
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.