Data processing application system - IBM Mainframe

Developing a data processing application system is a complex task. The design, development, testing and implementation of a system typically require the effort of several people over many months. Many of the steps involved in system development are probably familiar to you. Therefore, it is not the function of this book to guide you through the entire process. Instead, we will summarize the various steps involved in system development and discuss in greater detail only those portions that are unique to CICS.

In general, the development of an application system proceeds from the investigation of user requirements through the detailed coding and testing -of program modules. The process begins with the requirement analysis.

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