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During a review, you must examine the actual program code. If you are not familiar with a programming language used, you must request a “peer review” of the program code. Either way, to scan source code by eye is tedious at best and subject to error, or to compare two load modules is extremely difficult. The Program Comparison Display (5.3) provides you with a simple solution to both of these problems. You can compare one source program to another and one load module to another. Program Comparison automatically determines which type of file you asked it to compare.
Because many data centers store source programs in CA Librarian or CA Panvalet libraries, you can select an option when CA Auditor is installed that lets you compare programs in these libraries.
The Program Comparison display can be a valuable tool when you review system programs as exits, I/O appendages, SVCs, and APF‑authorized programs. For instance, you can compare different versions of the same system exit. You can use the z/OS System Exit Display (3.3) to identify the exits on the system. Obtain an archived copy of the exit and compare the current one to the archived one using the Program Comparison display.
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