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Selected:Failure Mode and Effects AnalysisTheory of Constraints Thinking ProcessATAM (Architecture Tradeoff Analysis Method)Current Reality Tree
| Criterion |  Operations Failure Mode and Effects Analysis |  Systems Thinking Theory of Constraints Thinking Process |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking Current Reality Tree |
|---|---|---|---|---|
Purposedifferent | 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. | The Theory of Constraints Thinking Process exposes a system's bottleneck and the logic behind it. It suits situations where many symptoms trace back to the same limiting relationship. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. |
Complexitysame | High | High | High | High |
Timedifferent | 2-6 h | 0.5-3 Tage | Several meetings plus preparation and analysis; total effort depends on scope | 2-6 h |
Participantsdifferent | 3-10 | 4-10 | Evaluation team, architects, and relevant stakeholders | 3-8 |
Formatdifferent | Workshop | Workshop | Workshop + async | Workshop |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Current Reality Logic, Conflict Cloud, Future Reality Tree, Implementation Obstacles | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Current Reality Tree, Core Problems, Intervention Ideas |
Tagsno overlap | RiskQualityOperationsRoot cause | Theory of ConstraintsConstraintsSystems thinkingCausality | ArchitectureQualityRiskTradeoffsStakeholders | Systems thinkingRoot causeConstraintsCausality |