Tool: COM-B Diagnose Canvas
FREE BEHAVIOURAL DESIGN TOOLS
Identify what’s driving or blocking behaviour.
Once you’ve mapped a behaviour using the COM-B Canvas, the COM-B Diagnose guide helps you dig deeper.
It breaks down each element of Capability, Opportunity, and Motivation into clear questions so you can pinpoint the exact barriers holding behaviour back.
Use it to:
Ask structured, diagnostic questions in interviews or workshops
Spot where the system fails, whether it’s skills, time, access, or emotion
Build evidence for targeted interventions
It’s a reference tool that turns theory into practice and gives your behavioural analysis structure and depth.


