That is actually a good criteria for code quality in general. Don’t prepare a Java method which is not used. Because it will _never_ be right. Just implement today’s story, and leave the rest for another day. Same goes for rarely used functions: They are usually very buggy, where as function in the middle of everyone’s workflow are flawless. Hence the work of a good product owner is to streamline everyone as much as possible on a few central functions. But of course, in an enterprise environment, there are a few functions that are required to work (XML export, backup and restore...)