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Selected:Fishbone DiagramICE ScoringATAM (Architecture Tradeoff Analysis Method)Failure Mode and Effects Analysis
| Criterion |  Operations Fishbone Diagram |  Product Strategy ICE Scoring |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | When ideas need sorting quickly, it condenses impact, confidence, and effort into one compact score. It connects customer value, product logic, and decision priorities. The result is captured as an ICE table and top-ideas list. | 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 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. |
Complexitydifferent | Low | Low | High | High |
Timedifferent | 30-60 min | 30-60 min | Several meetings plus preparation and analysis; total effort depends on scope | 2-6 h |
Participantsdifferent | 2-8 | 2-8 | Evaluation team, architects, and relevant stakeholders | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | ICE Table, Top Idea List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | Root causeQualityOperations | PrioritizationScoringGrowthDecision | ArchitectureQualityRiskTradeoffsStakeholders | RiskQualityOperationsRoot cause |