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Selected:Theory of ConstraintsFailure Mode and Effects AnalysisAfter-Action ReviewATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Operations Theory of Constraints |  Operations Failure Mode and Effects Analysis |  Operations After-Action Review |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | For a system that does not get faster despite effort, the method directs attention to the bottleneck. It concentrates improvement on the point that actually limits throughput. | 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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. |
Complexitydifferent | High | High | Low | High |
Timedifferent | 2-4 h Analyse, laufend | 2-6 h | 20-45 min | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-12 | 3-10 | 3-12 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Constraint Map, Improvement Plan, Flow Metrics | FMEA Table, Risk Priority, Mitigation Actions | Lessons learned, Action items, Event summary | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | OperationsConstraintsFlowImprovement | RiskQualityOperationsRoot cause | LearningOperationsImprovement | ArchitectureQualityRiskTradeoffsStakeholders |