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| Criterion |  Product Discovery Context Canvas |  Systems Thinking CATWOE Analysis |  Operations Fishbone Diagram |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When an environment of users, systems, and constraints is hard to grasp, it puts the context compactly on the table. It creates a clear reading of influence, boundary, and dependency. | CATWOE structures a problem from six viewpoints and prevents too narrow a view of the situation. Different experiences of the system become comparably discussable this way. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 45-90 min | 45-90 min | 30-60 min | 2-6 h |
Participantsdifferent | 3-10 | 3-8 | 2-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Context canvas, Open questions, Shared context notes | CATWOE Canvas, Root Definition, Stakeholder Perspectives, Constraints | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ContextFramingRequirementsCanvas | Systems thinkingFramingStakeholders | Root causeQualityOperations | RiskQualityOperationsRoot cause |