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Selected:8D Problem SolvingATAM (Architecture Tradeoff Analysis Method)Experiment CanvasAssumption Mapping
| Criterion |  Operations 8D Problem Solving |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Product Discovery Experiment Canvas |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. | When experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 1-6 Wochen | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 45-60 min |
Participantsdifferent | 4-10 | Evaluation team, architects, and relevant stakeholders | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Completed Experiment Canvas, Success Metric | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | QualityProblem solvingRoot cause | ArchitectureQualityRiskTradeoffsStakeholders | ExperimentsValidationDiscoveryHypothesis | AssumptionsRiskExperimentsValidation |