[kebman]

This looks similar to the logline pitch suggested in Save The Cat by Blake Snyder, or really most books on scriptwriting. Hell, it could even be said for writing your thesis. Always focus hard on your idea, or you logline, as it were, or the premise of your thesis. Once clearly defined, worded and outlined, it can both keep you on track and lead your project, and it may serve as a basis to get early feedback on your idea from the real world.