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| Criterion |  Product Discovery Context Canvas |  Operations 5 Whys |  Agile Specification by Example |  Operations 8D Problem Solving |
|---|---|---|---|---|
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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | When business rules need to become precise, it ties language, example, and test together. It sorts work by value, risk, and delivery ability. The result is captured as an Example Table and Acceptance Tests. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | Low | Medium | High |
Timedifferent | 45-90 min | 15-30 min | 60-90 min pro Feature | 1-6 Wochen |
Participantsdifferent | 3-10 | 2-6 | 3-6 | 4-10 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Context canvas, Open questions, Shared context notes | Root cause notes, Countermeasures | Example Table, Acceptance Tests | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | ContextFramingRequirementsCanvas | Root causeIncidentLeanProblem solving | AgileRequirementsExamplesBehavior-Driven Development | QualityProblem solvingRoot cause |