Managing programmer resources in a maintenance environment with function points

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Abstract
Programmer resources as measured in available hours are often a limiting or constraining resource in software projects and maintenance. A key element in software project management, therefore, is the forecast of required programming hours. Estimates based on past experience and similar projects are generally unreliable and usually underestimate the level of programming resources required. Function point counting provides a reliable methodology for estimating the level of effort required in software projects. Presents the results of using and modifying function point counting procedures in a maintenance environment where changes are often confined to one or more lines of code. The study indicates that even in this environment, function point counting procedures are useful. Finally, function point counting in the maintenance environment as discussed in this paper helped uncover problems in resource management, training, and personnel evaluation.

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