Practice brief · UCD methods

Double Diamond still the default framing for critique

Published 3 September 2026 · Source dated 1 January 2019

Used for: Alpha assumption; Stakeholder brief; Portfolio proof; Tool experiment; Method refresh. Practice brief for the gate you are in — not an industry digest dump.

Hype check: Established. Treated as established practice. Source dated 1 January 2019.

Saves the claim and source date (1 January 2019) on this device. No account.

The Design Council's Double Diamond framework remains the reference model UK studios use to structure discover-define-develop-deliver work. It's old and unglamorous, and that's exactly why interviewers still expect you to know it.

The Design Council's Double Diamond (discover, define, develop, deliver) has been the UK's go-to design process model since the mid-2000s, with a later 'Framework for Innovation' revision refining it further. It's not new or exciting, and that's precisely why it's useful: it's established enough that most hiring managers and senior designers will recognise it instantly when you reference it. As a junior, the framework is most useful for structuring portfolio case studies — it gives interviewers a map of where you were in the process and why you made a call. It also helps you spot gaps: skipped a proper 'define' stage and jumped straight into Figma? Better to name that honestly than hide it. This is established practice, not a trend — treat it as shared language with interviewers, not a rulebook to follow rigidly.

Coach
take your most recent project and label each phase against discover/define/develop/deliver. Flag the stage you skipped — that's your next portfolio talking point.

Source: designcouncil.org.uk · 1 Jan 2019

Pair with UCD Coach

Coach is the forward habit — today's five, every morning. Surf is the rearward workbench on the same briefing corpus. Today's five is not restaged here.

Open today's five on UCD Coach

Daily email stays on Coach. Surf has no subscribe form.

More practice briefs on the same topic — not today's five from UCD Coach.

Hype check: Adoption
AI is changing the design process, not replacing designers
A round-up of 2026 industry reports argues AI is reshaping how design work gets done — faster iteration, more code-adjacent prototyping — rather than eliminating design roles outright. The caveat: the data is self-reported and varies by company.
medium.com10 Jan
Hype check: Established
Usability testing is getting faster, not skipped
Method-focused coverage keeps pushing back on the idea that AI replaces user research — the real shift is faster, lighter testing loops.
smashingmagazine.com1 Aug
Hype check: Established
Content-first design is having a quiet comeback
Standards-focused design writing keeps returning to content-first workflows - writing real copy before polishing visuals. It matters more now that AI makes slick-looking mockups cheap to produce.
alistapart.com15 Apr

Pair with UCD Coach

Related in UCD methods

AI is changing the design process, not replacing designers

Usability testing is getting faster, not skipped

Content-first design is having a quiet comeback