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Selected:Software Architecture CanvasATAM (Architecture Tradeoff Analysis Method)5 Whys8D Problem Solving
| Criterion |  Architecture Software Architecture Canvas |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | 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. | 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. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | High | Low | High |
Timedifferent | 1-2 h | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min | 1-6 Wochen |
Participantsdifferent | 3-10 | Evaluation team, architects, and relevant stakeholders | 2-6 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Architecture Canvas, Goals, Constraints, Quality Attributes | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | CanvasArchitectureAlignmentWorkshop | ArchitectureQualityRiskTradeoffsStakeholders | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |