View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
Selected:Affinity EstimationATAM (Architecture Tradeoff Analysis Method)Fishbone DiagramBucket System
| Criterion |  Agile Affinity Estimation |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Fishbone Diagram |  Agile Bucket System |
|---|---|---|---|---|
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. | 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 a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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 | Medium | High | Low | Medium |
Timedifferent | 30-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 30-90 min |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders | 2-8 | 3-12 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Fishbone Diagram, Cause Categories, Investigation Backlog | Bucketed Backlog, Relative Estimates, Split Candidates |
Tagsno overlap | EstimationBacklogRelative sizing | ArchitectureQualityRiskTradeoffsStakeholders | Root causeQualityOperations | EstimationBacklogRelative sizing |