We do everything wrong: instead of spending years perfecting our technology, we build a minimum viable product, an early product that is terrible, full of bugs and crash-your-computer-yes-really stability problems. Then we ship it to customers way before its ready. And we charge money for it. After securing initial customers, we change the product constantlymuch too fast by traditional standardsshipping new versions of our product dozens of times every single day.

The Lean Startup by Eric Ries