BS ISO/IEC 15938-7-2004 信息技术.多媒体内容描述接口.一致性测试

标准号：BS ISO/IEC 15938-7-2004
中文标准名称：信息技术.多媒体内容描述接口.一致性测试
英文标准名称：Information technology - Multimedia content description interface - Conformance testing
标准类型：L81
发布日期：2004/2/12 12:00:00
实施日期：2004/2/12 12:00:00
中国标准分类号：L81
国际标准分类号：35.040
适用范围：Organization of the documentISO/IEC 15938 specifies a metadata system for describing multimedia content. This part of ISO/IEC 15938specifies how tests can be designed to verify whether descriptions and description consuming terminals meetthe specifications of parts 1, 2, 3, 4 and 5 of ISO/IEC 15938. In this part of ISO/IEC 15938, the creation orextraction of descriptions from multimedia content is not addressed specifically. A system producingdescriptions may be said to be an ISO/IEC 15938 compatible description production system if it producesdescriptions (binary or textual) that conform to the specifications of parts 1, 2, 3, 4 and 5 of ISO/IEC 15938.The characteristics of descriptions and the terminals consuming descriptions are defined for parts 1, 2, 3, 4and 5 of ISO/IEC 15938 as follows. Descriptions: the characteristics of a specific description are defined according to syntax and semanticsof elements from ISO/IEC 15938 that are used in the description. Terminals: the characteristics of a terminal consuming a description are defined according to therequired description decoding process for the elements used in the description. An example of adescription decoding property is the arithmetic accuracy in which the value of element are represented.The capabilities of a description consuming terminal are determined by the domain of descriptions andelements that the terminal is capable of decoding. A description can be decoded by a terminal if theelements of the description are within the subset of ISO/IEC 15938 specified for a given definition ofdecoder capabilities.In this document, procedures are described for testing conformance of descriptions and terminals according tothe specifications of parts 1, 2, 3, 4 and 5 of ISO/IEC 15938. Given a set of claimed characteristics(descriptions and terminals), the requirements for conformance are fully determined by parts 1, 2, 3, 4 and 5of ISO/IEC 15938. This part of ISO/IEC 15938 summarizes the requirements and defines how conformancecan be tested. Guidelines are given on constructing tests to verify conformance of descriptions and terminals.This document provides additional guidelines on how to construct test suites for checking conformance ofterminals. In addition, some test descriptions are provided.