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| Criterion |  Operations A3 Problem Solving |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Architecture Views and Beyond |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 45-90 min | Several meetings plus preparation and analysis; total effort depends on scope | 1-3 Tage | 15-30 min |
Participantsdifferent | 2-5 | Evaluation team, architects, and relevant stakeholders | 1-4 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Architecture Views, Cross-view Notes, Rationale | Root cause notes, Countermeasures |
Tagsno overlap | LeanProblem solvingCoachingOperations | ArchitectureQualityRiskTradeoffsStakeholders | DocumentationStakeholdersArchitecture | Root causeIncidentLeanProblem solving |