Affinity diagramming has long been used in business to organize large sets of ideas into clusters. In UX, the method is used to organize research findings or to sort design ideas in ideation workshops.
Workshops
Affinity Diagram — NN/g
Knowledge
How to Improve Your Design Team’s Productivity — The Startup
Designers can have a more significant impact than pushing pixels and can help with the totality of what we produce. But this can only be achieved when product design is implemented from the start, at the strategy level.
Startups
How to Build a Bulletproof Product Design Strategy