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Selected:ATAM (Architecture Tradeoff Analysis Method)Affinity EstimationViews and BeyondBucket System
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Agile Affinity Estimation |  Architecture Views and Beyond |  Agile Bucket System |
|---|---|---|---|---|
Purposedifferent | 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. | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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 | High | Medium | Medium | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 30-90 min | 1-3 Tage | 30-90 min |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-12 | 1-4 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop |
Outputdifferent | 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 | Architecture Views, Cross-view Notes, Rationale | Bucketed Backlog, Relative Estimates, Split Candidates |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | EstimationBacklogRelative sizing | DocumentationStakeholdersArchitecture | EstimationBacklogRelative sizing |