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| Criterion |  Innovation Double Diamond |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations MORT Analysis |  Operations Fault Tree Analysis |
|---|---|---|---|---|
Purposedifferent | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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 safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. |
Complexitydifferent | Medium | High | High | High |
Timedifferent | Wochen bis Monate | Several meetings plus preparation and analysis; total effort depends on scope | Mehrere Tage bis Wochen | 2-6 h |
Participantsdifferent | 3-12 | Evaluation team, architects, and relevant stakeholders | 2-6 | 3-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions |
Tagsno overlap | ProcessDivergenceInnovation | ArchitectureQualityRiskTradeoffsStakeholders | Root causeSafetySystemicIncident | RiskRoot causeSafety |