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  1. #1
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    Mainframe testing

    Can anyone respond to this following?

    In general, what need to pay attention for the testing on mainframe?

    Thanks,

    ------------------

  2. #2
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    Re: Mainframe testing

    Client/server architecture allows some of the processing to be done by the client. However, since there is code to ship to the client, you have to worry about the code being installed properly, working on their OS, playing well with the other applications on the desktop, security, and performance. Inside a company, you probably know the number of users, types of environments (OS, RAM, connection speed), so it's not as extensive as web testing, but it has more variables than mainframe testing. Also, while usability should not be ignored on mainframe applications, it seems to be more of an issue with client/server applications since they also generally have GUIs.

    Mainframe applications run on the mainframe and clients access the mainframe through a terminal emulator. The terminal emulator is the only software that needs to sit on the client machine. Changes to the software (COBOL, JCL, etc) are made on the mainframe and you don't need to worry about migrating them to the client. If it works through one terminal emulator it should work on them all.
    Thanks,
    Tim Van Tongeren

  3. #3
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    Re: Mainframe testing

    In my many Mainframe testing projects I have learnt the hard way some of the things that will cause you a lot of hassle if you don't cater for them.

    you MUST take a baseline of the transient data before you start your testing. mainframe data models can be quite complex, its not like C/S where you take a backup of some SQL databases. The Mainframe backup can consits of DB2 databases, VSAM files, Sequntial files etc.

    It is also Very useful to obtain the dedicated services of one someone who knows the Mainframe system inside-out. Get the person securing data, running batch's, bringing CICS up and down etc.

    I know this has not answered your question but these kind of things can return to haunt you if you don't plan for them.

    Mark,
    Perf. Analyst.

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