Framework · Double Diamond (Deep)

The full design-thinking process, as three linked diamonds.

Problem space (Discover broad → Define key problems), solution exploration (Ideate broad + lo-fi → down-select), solution refinement (mid-fi build → Deliver a tested solution presentation). Broad empathy, affinity clustering, and a lo-fi → mid-fi fidelity ladder with real prototype tests.

01Best for

When you want depth: many personas, broad problem exploration, clustered key problems, lo-fi prototypes tested and down-selected, a refined mid-fi prototype, and a buildable solution presentation.

Shape

Three diamonds: problem → exploration → refinement.

Best for

High-stakes work that warrants a full fidelity ladder.

Fidelity

Lo-fi prototypes diverse in kind, down-selected, then a mid-fi build.

Innovation

Creativity lenses push for at least one genuinely non-obvious concept.

Diverge → converge

01

Discover

Empathize broadly across distinct angles in a few real multi-persona councils. Surface lived problems and frictions; include a disconfirmation angle that tests the premise.

02

Define

Affinity-cluster the explorations into themes; name the key problem(s) and a sharp Point-of-View.

03

Ideate (Lo-Fi)

Generate many distinct, non-obvious concepts; build several lo-fi prototypes diverse in kind, including a deliberately extreme dark-horse.

04

Lo-Fi Test & Down-Select

Personas use the lo-fi prototypes in real sessions, then down-select to a shortlist to carry to mid-fi.

05

Refine (Mid-Fi)

Build mid-fi prototypes of the shortlist and explore concrete refinements, one per angle.

06

Deliver

Personas use the mid-fi prototype; synthesize the final solution presentation — winning concept, who it wins, validated solves, evidence trail, open risks, hand-off spec.

02Run it for

Jobs this framework powers.