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| Criterion |  Agile Bucket System |  Agile Affinity Estimation |  Facilitation Dot Voting |  Facilitation Nominal Group Technique |
|---|---|---|---|---|
Purposedifferent | 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. | 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 workshop has produced too many options and the group needs to condense quickly, dot voting makes preferences visible in a short time. It bundles individual votes into a solid signal for the next selection. | When loud voices could dominate a round, Nominal Group Technique protects individual thinking time from group effects. It collects ideas separately first and only then enables shared weighting. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 30-90 min | 30-90 min | 5-15 min | 60-120 min |
Participantsdifferent | 3-12 | 3-12 | 3-20 | 5-12 |
Formatsame | Workshop | Workshop | Workshop | Workshop |
Outputdifferent | Bucketed Backlog, Relative Estimates, Split Candidates | Affinity Size Map, Grouped Estimates, Unclear Items | Ranked list, Consensus signal, Shortlist | Ranked Ideas, Clarified Options, Group Priority |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing | FacilitationVotingConsensusPrioritization | FacilitationPrioritizationVotingInclusion |