According to TTCN ( tree and tabular combined notation ) structure frame a similar formalized language to describe the EPA abstract test suite is defined . The generation method of PICS ( protocol implementing conformance statement ) and protocol implement extra information are also researched .

参照 TTCN的结构框架定义了一种描述EPA抽象测试集的类形式化 语言，提出了EPA协议实现一致性说明和协议实施附加信息的生成方法；