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| Criterion | ![]() Agile Affinity Estimation | ![]() Agile Ideal Days | ![]() Facilitation Nominal Group Technique | ![]() Facilitation 1-2-4-All |
|---|---|---|---|---|
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 effort needs to be thought of as real working time, it offers a simple common denominator for comparison. It sorts work by value, risk, and delivery ability. The result is captured as Ideal Day Estimates, Assumption Notes, and Capacity Caveats. | 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. | 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. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-90 min | 15-60 min | 60-120 min | 10-20 min |
Participantsdifferent | 3-12 | 2-9 | 5-12 | 4-100+ |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Ideal Day Estimates, Assumption Notes, Capacity Caveats | Ranked Ideas, Clarified Options, Group Priority | Idea List, Shared Insights, Emergent Themes |
Tagsno overlap | EstimationBacklogRelative sizing | EstimationEffortAgile | FacilitationPrioritizationVotingInclusion | FacilitationInclusionIdeation |



