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| Criterion |  Innovation TRIZ |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | 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 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. | 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 | High | High | Low | High |
Timedifferent | 1-4 h | Several meetings plus preparation and analysis; total effort depends on scope | 15-30 min | 1-6 Wochen |
Participantsdifferent | 2-8 | Evaluation team, architects, and relevant stakeholders | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | ArchitectureQualityRiskTradeoffsStakeholders | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |