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Selected:Decision MatrixFailure Mode and Effects AnalysisATAM (Architecture Tradeoff Analysis Method)Kepner-Tregoe
| Criterion |  Decision Making Decision Matrix |  Operations Failure Mode and Effects Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | When several options collide with several criteria, comparison quickly becomes subjective. A Decision Matrix makes the trade-off visible and brings weighting, criteria, and options into a shared logic. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Medium | High | High | High |
Timedifferent | 45-90 min | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope | 2-8 h |
Participantsdifferent | 2-8 | 3-10 | Evaluation team, architects, and relevant stakeholders | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Decision Matrix, Scoring Rationale, Selected Option | FMEA Table, Risk Priority, Mitigation Actions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | DecisionCriteriaScoringTradeoffs | RiskQualityOperationsRoot cause | ArchitectureQualityRiskTradeoffsStakeholders | Problem solvingRoot causeDecisionOperations |