Affinity Diagram is a technique that allows a project team to group a large number of ideas into related categories. It is useful for organising facts, opinions and issues into natural groups to help diagnose a complex situation or find themes among them.

Steps
• Gather ideas generated
• Write ideas on cards (one idea per card)
• Post cards randomly on a board or flip chart
• Allow the group to organise the cards into clusters
• Create a ‘theme’ (label) that captures the essence of each cluster