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| Criterion |  Operations Root Cause Tree Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Fishbone Diagram |
|---|---|---|---|
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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Medium | Medium | Low |
Timedifferent | 1-3 h | 2–4 h review as a planning range; preparation and evaluation additional | 30-60 min |
Participantsdifferent | 2-8 | Designers, developers as users, and facilitation | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | Root causeTreeIncidentQuality | ArchitectureEngineeringFeedbackValidationTasks | Root causeQualityOperations |
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