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| Criterion |  Engineering Fault Isolation |  Architecture Software Architecture Canvas |  Decision Making DACI |  Decision Making RAPID |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | The Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | In cross-functional decisions, responsibilities quickly blur between approval, influence, and execution. DACI arranges these roles so decision pressure, contribution, and information stay cleanly separated. | In complex management decisions, clarity is often missing about who recommends, who agrees, and who makes the decision. RAPID creates this assignment and stabilizes decisions across several levels. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 30-180 min | 1-2 h | 30-60 min | 45-90 min |
Participantsdifferent | 1-6 | 3-10 | 2-10 | 3-12 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Architecture Canvas, Goals, Constraints, Quality Attributes | DACI Matrix, Decision Owner, Decision Log | RAPID Role Map, Recommendation, Decision Log |
Tagsno overlap | TroubleshootingDiagnosisEngineering | CanvasArchitectureAlignmentWorkshop | DecisionRolesGovernanceAlignment | DecisionRolesGovernance |