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会话层／表示层协议是ＯＳＩ高层协议的一部分。本文介绍协议一致性测试研究现状、测试过程及方法，分析会话层／表示层协议一致性测试需求，采用树表格式（ＴＴＣＮ）与抽向语法表示（ＡＳＮ．１）相结合的形式化描述语言，设计实现了会话层／表示层协议一致性测试系统及测试集。并对ＩＳＯＤＥ软件中的会话层／表示层协议实现进行了一致性测试，包括基本互连、能力、有效行为、无效行为及定向诊断等。
Session / presentation protocols are part of OSI’s high-level protocols. This paper introduces the research status, testing process and methods of protocol conformance testing, and analyzes the requirements of conformance testing of session / presentation protocols. It uses the formal description language of TTCN and ASN.1, , Designed and implemented the session / presentation protocol conformance test system and test set. The conformance testing of the session / presentation protocol in ISODE software was carried out, including basic interconnection, capability, effective behavior, invalid behavior and directional diagnosis.