Yeah it's like that, build is the same as generating something, but I like generate more as we always start by generating an idea or a model. Then test is like two parts, explore and evaluate - so we've got an idea, say and we explore it with others then we evaluate (see what's of value in it) from what we learnt by our exploring. Of course then we can generate a refined version of our idea, more detailed and built up based on that... etc.