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Selected:ATAM (Architecture Tradeoff Analysis Method)Customer Journey Mapping5 Whys8D Problem Solving
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  UX Research Customer Journey Mapping |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
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 a user journey falls apart across many touchpoints, customer journey mapping makes the experience visible as a coherent arc. Phases, emotions, and breaks become legible enough to prioritize critical moments deliberately. | 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 | High | Medium | Low | High |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 2-4 h | 15-30 min | 1-6 Wochen |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 4-10 | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Journey Map, Pain-point List, Opportunity Backlog | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | JourneyServiceService design | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |