For years a friend tried to get his department (where he worked as a lecturer) to add a software engineering course where the basic syllabus was to (1) receive a TOI from the last semester and the code base, (2) implement some new features in the code base, (3) deploy and operate the code for awhile, and (4) produce a TOI for the next semester.

The code base was for a simple service that basically provided virus/malware scanning and included the malware scanner and signatures (this ensured there would never be an end to the work - there's always more signatures to add, more features, etc.)

I thought this was a fantastic idea and its a pity he never convinced them. That was more than fifteen years ago, and in his plan it would have just run forever.