My Product Design Methodology

Double Diamond Design Process

The Double Diamond design thinking approach is a methodology of design developed by the Design Council (UK). The two diamonds represent a process of exploring an issue more widely or deeply (divergent thinking) and then taking focused action (convergent thinking).

Discover

The first diamond helps people understand, rather than simply assume, what the problem is. It involves speaking to and spending time with people who are affected by the issues. Essentially, user research.

Examples here from my portfolio: a design sprint discovery session (above), user interview documentation (behind) .

Define

The insight gathered from the discovery phase helps to define the challenge in a different way. I also use this phase to scope the initiative.

Examples: Insight themes from analysing user interview data, (below) Persona documentation.

Design

The second diamond encourages people to give different answers to the clearly defined problem, seeking inspiration from elsewhere and co-designing with a range of different people.

Examples: Wireframes & Prototypes.

Deliver

Delivery involves testing out different solutions at small-scale, rejecting those that will not work and improving the ones that will. I also include design system specifications, documentation, handover and success measurement as part of the delivery process. The measurements then feedback into future iterations.

I use this framework at varying degrees of organisational “altitude”: from Strategic Thinking through to UX Design & Testing. It is effective not only for design: Consider it a mental model that helps to uncover problems and frame solutions, and it is most powerful when used implanted inside an organisation as a cultural artefact, a common mindset.