Entrepreneurs using the Lean Startup methodology are encouraged to question everything from their initial idea to their design decisions to any features they want to add.
Ries recommends giving the MVP to a select group of test customers to determine what improvements need to be made.
The basic idea is that young companies "build, measure, learn" and repeat the process until their MVP can be turned into a sustainable business plan. Often this process leads founders to move from one idea, market, or niche to the next in search of a great product.
Coming up with structured ideas and then finding creative ways to test them is central to the lean startup method. And it's proven to be a great way to innovate even if you have limited resources.
Build-Measure-Learn is a research-intensive process that can be emotionally taxing, as developers must be willing not only to put their creations out into the world before they're "ready," but also to accept and implement feedback.
Implemented correctly, the lean startup method can lead to a company that meets the needs of its customers, is sustainable, and has its business purpose validated before the founder even starts looking for funding. Ries' website cites Dropbox as a prime example of a large company that has become successful using the method.
The goal of Build-Measure-Learn is not to build a final product to ship or to develop a beta version of a product but to maximize learning through incremental and iterative development. (The learning could be about product features, customer needs, getting the pricing and distribution channel right, etc.).
The "build" step refers to the design of an MVP. It is important to understand that an MVP is not a product with fewer features. Rather, it is the simplest thing you can show customers to achieve the greatest learning effect at that point.
This five-part Build-Measure-Learn diagram helps us realize that the real purpose of the building is to test "ideas" - not just blindly build without a goal.