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Selected:ATAM (Architecture Tradeoff Analysis Method)Time BlockingRoot Cause Analysis8D Problem Solving
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Time Blocking |  Operations Root Cause Analysis |  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. | With a calendar that grows on request, the method makes available time explicit again. It combines appointments, focus work, and buffer into a more realistic day structure. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 | Low | Medium | High |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min Planung, laufend | 1-4 h | 1-6 Wochen |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 1 | 3-8 | 4-10 |
Formatdifferent | Workshop + async | Async | Workshop + async | 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 | Blocked Calendar, Capacity View, Focus Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | PlanningTime managementFocus | Root causeProblem solvingQualityIncident | QualityProblem solvingRoot cause |