Teaching Software Maintenance

This paper outlines the content and techniques used to teach software maintenance to university sophomores (second-year students) who have had three semesters of programming. The course uses an introductory text that is geared to the maturity of the audience. By turning the introductory project of the course into a large software evolution exercise, the major topics of software engineering can still be easily introduced and examined. We present the course organization, evaluation rubrics, and student and instructor experiences from six offerings of the course to demonstrate that treating the project in an introductory course as a software evolution exercise on a large, mature system is a viable alternative to the usual (greenfield) approaches. As an added benefit, meaningful contributions to the open source community can be made.