What is a minimum viable product?

A minimum viable product is the simplest version of a product that still delivers value to a group of real customers and lets the team test an important assumption. Its purpose is learning at the lowest cost and in the shortest time, not building the finished product.

It can be a landing page with a sign-up form, a manual service behind a simple interface, or software with a single core feature. It is judged by what real users do: sign up, come back, or pay.