The Double Diamond framework isn’t just for designers. It’s an essential tool for evaluating complex programmes and projects, combining clear thinking, practical actions, and continuous improvement. If you’re looking for an evaluation method that cuts through complexity and delivers results, this guide is for you.


Why Use the Double Diamond for Evaluation?

Think of the Double Diamond as two cycles of zooming out and zooming in:

  1. Discovery: Explore the big picture. What’s working, what isn’t, and why.
  2. Definition: Focus on the specific. What exactly are you evaluating?
  3. Development: Dive into solutions. How can we test and improve?
  4. Delivery: Measure impact. What worked, and how do we move forward?

It’s structured, flexible, and adaptable: perfect for real-world challenges.


Step 1: Discovery—Understanding the Landscape

This stage is about asking the right questions and exploring the context.


Step 2: Definition—Narrowing the Focus

Now it’s time to bring clarity. This step is about turning questions into actions.


Step 3: Development—Building and Testing

This is where the work gets practical. Create tools and processes that help you measure what matters.


Step 4: Delivery—Learning and Improving

It’s time to implement, assess, and evolve. This stage is about turning insights into action.


Five Quick Tips for Double Diamond Success

  1. Collaborate Constantly: Stakeholders aren’t just a tick-box exercise—they’re your co-creators.
  2. Balance Data with Stories: Numbers matter, but so do people. Combine stats with lived experiences.
  3. Be Open to Change: If something doesn’t work, adapt. The framework is a guide, not a rulebook.
  4. Celebrate Wins: Share successes, no matter how small. Momentum builds belief.
  5. Keep It Simple: If it feels too complicated, it probably is. Focus on clarity and practicality.

The Double Diamond in Action

With the Double Diamond, evaluation becomes more than just a task—it’s an opportunity to learn, improve, and grow. Whether you’re tackling small tweaks or big challenges, this framework keeps you grounded and focused. You’ll uncover what works, identify what doesn’t, and chart a course for better outcomes.

Evaluation doesn’t have to be boring or overwhelming. It’s your chance to make things better—for your team, your stakeholders, and your future.