Rework Requirement Changes in Software Maintenance

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Conference Proceeding
The Fifth IEEE International Conference on Software Engineering Advances, 2010, pp. 252 - 258
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The rework cost of a requirement change is high. Requirements changes, which relate to hidden catastrophic failures, can cost many thousands of dollars to fix. An exploratory study on software maintenance records demonstrates that specific change characteristics in corrective change and functional change are shown to have an effect on rework. In pursuing a deep understanding of the effects, we found that unexpected errors and poor understanding of errors trigger higher rework effort.
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