SDL支撑系统

SDL SUPPORTING SYSTEM

ＳＤＬ是一种主要用于对电信系统性能制定确切的功能规格和描述的国际标准语言．本文描述了以ＣＣＩＴＴＳＤＬ’８８为标准，基于图形核心系统（ＧＫＳ）设计实现的ＳＤＬ支撑系统（３Ｓ），包括ＳＤＬ的图形方式（ＳＤＬ／ＧＲ）的文档录入和编辑工作、对录入的ＳＤＬ／ＧＲ文档进行正确性检查和将ＳＤＬ／ＧＲ文本翻译到文字短语方式表达的ＳＤＬ／ＰＲ文本等几部分．此工作的完成对于使用图形方式描述计算机系统，然后翻译到高级语言提供了可能．

SDL (CCITT Functional Specification and Description Language) is designed mainly for telecommunication. According to the CCITT SDL'88 documentation, this paper designs and implements the SDL Supporting System (3S) based on Graphical Kernel System (GKS). The 3S can be used to edit SDL document in graphical representation (SDL /GR), then check the correctness of the document, and at last translate the graphical document into phase representation (SDL/PR). 3S made it possible to specify and describe user's requirement in graphical method and get the text result, or high level languages.