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| Criterion |  Agile Planning Poker |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile Affinity Estimation |  Agile Bucket System |
|---|---|---|---|---|
Purposedifferent | When estimates within the team diverge too much, it puts differing expectations on a common test bench. It separates rough complexity from unspoken assumptions. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | 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. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 2-5 min je Item | Several meetings plus preparation and analysis; total effort depends on scope | 30-90 min | 30-90 min |
Participantsdifferent | 3-9 | Evaluation team, architects, and relevant stakeholders | 3-12 | 3-12 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Relative Estimates, Assumption Notes, Split Candidates | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Affinity Size Map, Grouped Estimates, Unclear Items | Bucketed Backlog, Relative Estimates, Split Candidates |
Tagsno overlap | EstimationAgileRelative sizingTeam | ArchitectureQualityRiskTradeoffsStakeholders | EstimationBacklogRelative sizing | EstimationBacklogRelative sizing |