3
Waterfall
(beza1e1.tuxen.de)
Software Engineering is the systematic and engineered development of software in all its life cycle.
It is almost like the things like PMBOK (which now changed to a principles-based body of knowledge)... these things have no base in scientific method (empirically-based), having origins back to all the DOD needs
Also reminds me of this important research article "The two paradigms of software development research" posted here before https://group.lt/post/46119