Program maintenance represents a major portion of the total expenditures on application programs. Despite the attention this subject has received in the MIS literature, new guidelines to action in this area remain of great interest to practitioners. A large number of variables thought to be determinants of application program maintenance expenditure have been studied through the inspection of application portfolios and personal interviews with top computer executives and systems development personnel. Based on the results, recommendations are made on how to reduce application program maintenance expenditures.
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