Solving Maintenance Problems

Solving the problems that arise in software is the primary task of the maintainer. The problem definition, including the solution criteria and any additional information that is needed, is contained in a modification request or an error report. Transformation operations (e.g., adding, deleting, replacing, or rearranging code) are applied as required to the problem situation (i.e., the current state of the code) until the solution criteria are satisfied, ensuring that the other program functions operate as before. Throughout the process, the maintainer relies on timely and appropriate information.