The essence of lean development lies in quick iteration.
In the Hypothesis step, the Problem Space hypothesis is formulated.
- Design Step is about finding the best way to test the hypothesis.
- After creating a design artifact, the Test step allows the team to verify their assumptions through customer testing.
- The Learn Step studies the results to understand the changes required leading to a better hypothesis.
At every point, the team should identify which part of the Product-Market Fit Pyramid the new insight falls in. Changes in the lower layers will require reworking in all subsequent layers.