# Discover, Define, Develop, Deliver

Its four phases.

**Also called:** discover, define, develop, deliver

**Source:** “The first diamond helps people understand, rather than simply assume, what the problem is.” [Framework for Innovation (Design Council)](https://www.designcouncil.org.uk/resources/framework-for-innovation/)

See also: [Double Diamond](/reference/glossary/double-diamond).

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Published 2026-10-29. Web page: https://www.mackenziebowes.com/reference/glossary/discover-define-develop-deliver