This might provide some insight on this trend: http://theleanstartup.com/ http://theleanstartup.com/ This is one of many concepts that supports working from a

This might provide some insight on this trend: http://theleanstartup.com/ http://theleanstartup.com/ This is one of many concepts that supports working from a MVP (minimum viable product) and doing one thing (or a few things) really well and to build based on real user metrics. This makes the whole thing a learning process with fast iteration rather than a strict plan to market that is followed from beginning to end.