A utility program is a set of generalized programs, written by IBM, which can be used for common data processing functions. However, these programs cannot help a programmer to actively test his/her program but definitely assist him/her in some other way to test their program, by preparing a set of test data, selecting a set of data with specific testing conditions, etc.
For example, a tape dataset needs to be copied to paper. It is possible to write a program to do that, but IBM made it easy by providing a utility program IEBGENER to do just that without letting the programmer write a new program to perform this small function. Industry information shows that IEBGENER is the most extensively used utility program in all IBM mainframe environment.
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