Double Diamond (design process model)

Double Diamond is the name of a design process model popularized by the British Design Council in 2005,[1] and adapted from the divergence-convergence model proposed in 1996 by Hungarian-American linguist Béla H. Bánáthy.[2][3] The two diamonds represent a process of exploring an issue more widely or deeply (divergent thinking) and then taking focused action (convergent thinking).[4] It suggests that the design process should have four phases:

  • Discover: Understand the issue rather than merely assuming it. It involves speaking to and spending time with people who are affected by the issues.
  • Define: The insight gathered from the discovery phase can help to define the challenge in a different way.
  • Develop: Give different answers to the clearly defined problem, seeking inspiration from elsewhere and co-designing with a range of different people.
  • Deliver: Involves testing out different solutions at small-scale, rejecting those that will not work and improving the ones that will.[4]
Illustration of the double diamond diagram

References
  1. "Eleven lessons. A study of the design process" (PDF). Design Council. Retrieved 2 December 2022.
  2. Banathy, Bela H. (1996). Designing Social Systems in a Changing World. Springer US. p. XV, 372. ISBN 978-0-306-45251-2.
  3. Möller, Ola (9 January 2015). "The Double Diamond". MethodKit Stories. Retrieved 3 September 2019.
  4. "What is the framework for innovation? Design Council's evolved Double Diamond". Design Council. Retrieved 6 April 2021.
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