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| Criterion |  Operations Root Cause Tree Analysis |  Architecture Software Architecture Canvas |  Operations Change Analysis |
|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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. | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. |
Complexitydifferent | Medium | Low | Medium |
Timedifferent | 1-3 h | 1-2 h | 45-120 min |
Participantsdifferent | 2-8 | 3-10 | 2-6 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Architecture Canvas, Goals, Constraints, Quality Attributes | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | Root causeTreeIncidentQuality | CanvasArchitectureAlignmentWorkshop | ChangeRoot causeTroubleshootingComparison |
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