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Selected:Fishbone DiagramDelphi MethodFailure Mode and Effects AnalysisATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Operations Fishbone Diagram |  Decision Making Delphi Method |  Operations Failure Mode and Effects Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
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 knowledge is distributed and direct dominance should be avoided, groups quickly fall under the sway of their opinion leaders. The Delphi Method gathers assessments iteratively and gradually brings expert judgments closer together. | 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. |
Complexitydifferent | Low | High | High | High |
Timedifferent | 30-60 min | 1-4 Wochen | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-8 | 6-30 Experten | 3-10 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Async | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Expert Forecast, Consensus Range, Assumption Notes | 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 |
Tagsno overlap | Root causeQualityOperations | ForecastingExpertsDecisionStrategy | RiskQualityOperationsRoot cause | ArchitectureQualityRiskTradeoffsStakeholders |