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| Criterion |  Innovation Brainwriting |  Agile Affinity Estimation |  Agile Bucket System |  Innovation Round Robin Brainstorming |
|---|---|---|---|---|
Purposedifferent | When loud voices or hierarchy distort the idea search, the method creates a quiet entry into joint development. It gives everyone thinking space and gathers contributions without social brakes, making diversity more visible and easier to build on. | 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. | 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 | Low | Medium | Medium | Low |
Timedifferent | 15-30 min | 30-90 min | 30-90 min | 20-45 min |
Participantsdifferent | 3-12 | 3-12 | 3-12 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop |
Outputdifferent | Idea sheets, Expanded concepts, Prioritized list | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates | Idea List, Cluster, Shortlist |
Tagsno overlap | BrainstormingCollaborationInclusionIdeas | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing | BrainstormingIdeationFacilitationInclusionCreativity |