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| Criterion |  Agile Affinity Estimation |  Facilitation 1-2-4-All |  Innovation Round Robin Brainstorming |  Innovation Reverse Brainstorming |
|---|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | When many people in a group too rarely get to speak, 1-2-4-All distributes thinking time more fairly. The format builds participation step by step and makes quiet or still-unformed thoughts usable faster. | With unevenly distributed speaking time, the method brings every person into the contribution one after another. It prevents early voices from setting the direction while still producing a shared idea space. This makes participation plannable and the team's diversity visible. | For persistent errors or blockages, the method shifts the view to the opposite of the desired effect. It exposes the mechanics of failure and makes hidden causes easier to grasp. This makes improvement more concrete and the problem clearer. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 30-90 min | 10-20 min | 20-45 min | 30-60 min |
Participantsdifferent | 3-12 | 4-100+ | 4-10 | 3-12 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Idea List, Shared Insights, Emergent Themes | Idea List, Cluster, Shortlist | Reverse Ideas, Risk Themes, Solution Ideas |
Tagsno overlap | EstimationBacklogRelative sizing | FacilitationInclusionIdeation | BrainstormingIdeationFacilitationInclusionCreativity | BrainstormingIdeationCreativityRisk |