The Double Diamond

The Double Diamond, introduced by the UK Design Council, shows design as two rounds of exploring and then focusing. The first diamond is about the problem; the second is about the solution.

It has four stages:

• Discover: research widely to understand the problem.
• Define: narrow the findings into a clear problem statement.
• Develop: explore many possible solutions.
• Deliver: test, refine and launch the best one.

Teams often loop back. If testing in Deliver shows the problem was misunderstood, they return to Discover.