Double diamond

The Double Diamond is a visual model of the design process, published by the British Design Council in 2005. It maps design as two connected “diamonds”: the first explores and defines the right problem, the second explores and delivers the right solution.
‍
Its four phases are Discover (research the problem broadly), Define (narrow to a clear brief), Develop (explore many possible solutions) and Deliver (test and ship the best one). Each diamond widens as the team diverges to explore, then narrows as it converges on a decision.

Why does it matter?

The model reminds teams not to jump straight to solutions. By insisting on a Discover and Define phase first, it guards against solving the wrong problem — the most expensive mistake in product design.
‍
It also gives cross-functional teams a shared language for where they are in a project, making it easier to plan research, ideation and testing at the right moments.

Similar