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Selected:Failure Mode and Effects AnalysisATAM (Architecture Tradeoff Analysis Method)Iceberg Model8D Problem Solving
| Criterion |  Operations Failure Mode and Effects Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Systems Thinking Iceberg Model |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | 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 | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope | 30-60 min | 1-6 Wochen |
Participantsdifferent | 3-10 | Evaluation team, architects, and relevant stakeholders | 2-10 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | FMEA Table, Risk Priority, Mitigation Actions | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Iceberg Worksheet, Pattern Notes, Intervention Ideas | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | RiskQualityOperationsRoot cause | ArchitectureQualityRiskTradeoffsStakeholders | Systems thinkingRoot causePatterns | QualityProblem solvingRoot cause |