信息技术 多媒体和超媒体信息编码 第7部分：ISO/IEC13522-5的互操作性和一致性检验

[中文适用范围]： MHEG-5 引擎是处理、解释和呈现 MHEG-5 对象的系统或应用程序组件。 ISOAEC 13522 这部分的范围是定义一个测试套件，可用于测试 MHEG-5 引擎对特定应用领域的一致性。 它还定义了测试用例的格式，可用于扩展测试套件，以进行更详细的测试或由应用程序域定义的扩展。 定义引擎性能、引擎内存使用或在这些引擎上运行的 MHEG-5 应用程序的测试超出了 ISOAEC 13522 本部分的范围。 ISOAEC 13522 的这一部分指定了 ISOAEC 13522-5:1997 的所有功能的测试用例。 应用程序域定义了必须支持的 MHEG-5 功能的子集。 为了测试与特定应用程序域的一致性，必须定义测试用例的相应子集。 然后，测试套件的这个子集用于测试引擎的一致性。 ISOAEC 13522 的这一部分测试 MHEG 发动机行为的一致性。 它不验证 MHEG-5 物体的物理呈现。 测试套件包括一组测试用例和一组相应的测试对象。 测试用例的定义如下： ——测试目的； ——用于测试一项或多项 MHEG-5 功能的对象和程序； ——预期结果。 将为测试对象提供一组内容数据。 这些内容数据旨在作为生成测试套件的指南，并且应该被转换或替换为适合应用程序域的内容格式。 应用程序域的测试套件应使用第 9.2.1 PICS 模板中的 PICS 模板生成。 [外文原描述]： 1.1 Context of the scope ISO/IEC 13522 specifies the coded representation of multimedia/hypermedia information objects (MHEG objects) for interchange as final form units within or across services and applications, by any means of interchange including local area networks, wide area telecommunication or broadcast networks, storage media, etc. ISO/IEC 13522-5:1997 defines the MHEG-5 object classes for interchange and use in base-level applications intended to be run on limited resource terminals such as set-top-boxes in such contexts as interactive broadband services. Annex F of ISO/IEC 13522-5:1997 specifies the features that need to be defined by a specific MHEG-5 application domain. The informative annexes of this part of ISO/IEC 13522-5:1997 give illustrative examples of profiles of some common application domains. 1.2 Scope MHEG-5 engines are system or application components that handle, interpret and present MHEG-5 objects. The scope of this part of ISO/IEC 13522 is to define a test suite that can be used to test an MHEG-5 engine's conformance to a specific application domain. It also defines a format for test cases that can be used to extend the test suite, either for more detailed testing or for extensions defined by the application domain. It is beyond the scope of this part of ISO/IEC 13522 to define tests for engine performance, engine memory usage or for MHEG-5 applications that run on these engines. This part of the ISO/IEC 13522 specifies test cases for all features of ISO/IEC 13522-5:1997. Application domains define a subset of MHEG-5 features that must be supported. In order to test conformance to a specific application domain, a corresponding subset of the test cases must be defined. This subset of the test suite is then used to test the conformance of the engine. This part of ISO/IEC 13522 tests conformance of the behaviour of an MHEG engine. It does not validate the physical presentation of MHEG-5 objects. The test suite comprises a set of test cases and a corresponding set of test objects. The test cases are defined in terms of: _ test purpose; _ objects and procedures which are to be used to test one or more MHEG-5 features; _ expected result. ISO/IEC 13522-7:2001(E) A set of content data will be provided for the test objects. These content data are intended as a guide for generating a test suite and should be converted or replaced by content formats appropriate to the Application Domain. A test suite for an Application Domain shall be generated by using the PICS template in subclause 9.2.1 PICS Template.