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| Criterion |  Operations 8D Problem Solving |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making Pre-Mortem |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | In early initiatives with many uncertainties, planning quickly turns too optimistic. A pre-mortem makes the expected failure visible in advance and sharpens the view of causes, gaps, and countermeasures. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | High | High | Low | High |
Timedifferent | 1-6 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 20–45 min | 2-8 h |
Participantsdifferent | 4-10 | Evaluation team, architects, and relevant stakeholders | Small cross-functional group | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Risk list, Mitigation plan, Assumption log | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | QualityProblem solvingRoot cause | ArchitectureQualityRiskTradeoffsStakeholders | RiskDecisionFailurePlanning | Problem solvingRoot causeDecisionOperations |