What techniques do you use to maximise code reuse?

Question

Some years ago I was told about a study into code reuse. Apparently it was found that, on average, programmers have a 7 minute window when searching for code to reuse. If th

Answer 1

Try using TDD if your aren't already is my initial repsonse.

I think the use of TDD is a great way to keep code coupling low, amongst other benefits. While that inherently doesnt prevent the same behaviour from being implemented twice, it makes it a great deal easier when you DO identify an area in which you could remove duplication.

Another benefit, TDD has a step for removing dupication (refactoring) as part of the cycle.

Also, tests form part of your codes documentation, thus making it easier to identify duplicated behaviour.