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Selected:Change AnalysisATAM (Architecture Tradeoff Analysis Method)Value Chain AnalysisFailure Mode and Effects Analysis
| Criterion |  Operations Change Analysis |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Business Strategy Value Chain Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | 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. | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | 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 | Medium | High | High | High |
Timedifferent | 45-120 min | Several meetings plus preparation and analysis; total effort depends on scope | Half day | 2-6 h |
Participantsdifferent | 2-6 | Evaluation team, architects, and relevant stakeholders | 3-8 | 3-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Value Chain Map, Lever List | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | ArchitectureQualityRiskTradeoffsStakeholders | StrategyBusiness modelDiagnosisAnalysis | RiskQualityOperationsRoot cause |