The Lean Startup: The Million Copy Bestseller Driving Entrepreneurs to Success

A pivot is not just an exhortation to change. Remember, it is a special kind of structured change designed to test a new fundamental hypothesis about the product, business model, and engine of growth. It is the heart of the Lean Startup method. It is what makes the companies that follow Lean Startup resilient in the face of mistakes: if we take a w

MVPs require the courage to put one’s assumptions to the test.

each of the three A’s of metrics: actionable, accessible, and auditable.

As a comprehensive solution to the problem of financial abuse, this minimum viable product is not very good compared with what a $500 million agency could accomplish. But it is also not very expensive. This product could be built in a matter of days or weeks, and the whole experiment probably would cost only a few thousand dollars. What we would le

Following standard agile practice, Grockit’s work proceeded in a series of sprints, or one-month iteration cycles. For each sprint, Farb would prioritize the work to be done that month by writing a series of user stories, a technique taken from agile development. Instead of writing a specification for a new feature that described it in technical te

Cohorts and Split-tests Grockit changed the metrics they used to evaluate success in two ways. Instead of looking at gross metrics, Grockit switched to cohort-based metrics, and instead of looking for cause-and-effect relationships after the fact, Grockit would launch each new feature as a true split-test experiment.

The problem with most entrepreneurs’ plans is generally not that they don’t follow sound strategic principles but that the facts upon which they are based are wrong. Unfortunately, most of these errors cannot be detected at the whiteboard because they depend on the subtle interactions between products and customers.

Most entrepreneurs approach a question like this by building the product and then checking to see how customers react to it. I consider this to be exactly backward because it can lead to a lot of waste. First, if it turns out that we’re building something nobody wants, the whole exercise will be an avoidable expense of time and money. If customers

We must learn the truth about which elements of our strategy are working to realize our vision and which are just crazy. We must learn what customers really want, not what they say they want or what we think they should want. We must discover whether we are on a path that will lead to growing a sustainable business.