分散式線上CICS COBOL 異動程式產生器--CSPGen

Abstract

電腦進展從單一主機系統發展為分散式系統有許多優點, 例如可以分 享豐富的網路資源, 較高的可靠度及分散資料到更適切的地點等等. 然而 目前社會上仍有許多公司機構的應用系統仍為傳統的 COBOL 語言所撰 寫, 而且採用 IBM 電腦產品的客戶更有為數眾多CICS 上 的應用系統, 其許多應用系統已沿用多年, 若想更改或重寫成主從架構的型態其間存在 著許多困難與矛盾. 本篇論文即針對此一問題提出一個半自動的工具, 能將原來Online CICS COBOL 程式轉換成主從架構模式的程式組, 此一工具我們稱之為 " CSPGen " . CSPGen 提供了一個非常友善, 方 便上手的使用者界面, 使用者即使不懂得主從架構模式也能透過這使用者 界面, 方便的將一套以循序架構撰寫的 Online CICS COBOL 程式轉換成 主從架構模式的程式. The trend of computer development is from a centralized system to a distributed system.There are many benefits from this development,such as getting better price / performance ratio,higher reliability,sharing devices, ..etc.But many companys' application systems are still written by traditional COBOL language and many IBM customers use CICS to develop application system.And there are many difficulty and paradox if they want to change or rewrite the application fit the new client-server environment. This thesis points out the problem and submits a half-automatic tools to solve the problem.It can change online CICS COBOL transaction programs to client - server model programs, and we call it "CSPGen".It provides a friendlyand convenient interface. With it's help,the programers of centralizd systemscan design and develop their distributed client-server programs very easily.