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| Criterion |  Agile Affinity Estimation |  Agile Bucket System |  Innovation Reverse Brainstorming |  Innovation Round Robin 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 a large batch of work needs a fast, rough estimate, it sorts items into predefined size buckets. It sorts work by value, risk, and delivery ability. The result is captured as a Bucketed Backlog, Relative Estimates, and Split Candidates. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 30-90 min | 30-60 min | 20-45 min |
Participantsdifferent | 3-12 | 3-12 | 3-12 | 4-10 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates | Reverse Ideas, Risk Themes, Solution Ideas | Idea List, Cluster, Shortlist |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing | BrainstormingIdeationCreativityRisk | BrainstormingIdeationFacilitationInclusionCreativity |