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| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 8D Problem Solving |  Product Discovery Riskiest Assumption Test |
|---|---|---|---|
Purposedifferent | 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. | 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. | When an idea hinges on one critical unknown, it prioritizes testing that exact piece of uncertainty first. It separates problem, assumption, solution, and evidence. The result is captured as a prioritized list of assumptions, a test plan, and a result report. |
Complexitydifferent | High | High | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 1-6 Wochen | 1-2 Wochen pro Iteration |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 4-10 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Prioritized Assumption List, Test Plan, Results Report |
Tagsno overlap | ArchitectureQualityRiskTradeoffsStakeholders | QualityProblem solvingRoot cause | ExperimentsValidationDiscoveryAssumptions |
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