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| Criterion |  Decision Making Delphi Method |  Architecture SAAM (Software Architecture Analysis Method) |  Operations Fishbone Diagram |  Operations Change Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | 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. | 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. |
Complexitydifferent | High | High | Low | Medium |
Timedifferent | 1-4 Wochen | Preparation, scenario analysis, and findings review; effort depends on scope | 30-60 min | 45-120 min |
Participantsdifferent | 6-30 Experten | Architecture experts and stakeholders for scenarios and weighting | 2-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Fishbone Diagram, Cause Categories, Investigation Backlog | Change Matrix, Cause Hypotheses, Validation Questions, Action List |
Tagsno overlap | ForecastingExpertsDecisionStrategy | ArchitectureChangeAnalysisComparisonQuality | Root causeQualityOperations | ChangeRoot causeTroubleshootingComparison |