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| Criterion |  Decision Making Delphi Method |  DevOps Blameless Postmortem |  Business Strategy Value Chain Analysis |  Business Strategy Business Model Canvas |
|---|---|---|---|---|
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. | After an incident with damage or a near miss, the method creates a sober field for learning without assigning blame. It directs attention to the course of events, conditions, and effective countermeasures. | 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. | The Business Model Canvas condenses a business model to its key building blocks and assumptions. It makes variants quickly comparable and reveals gaps before validation or implementation begins. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 1-4 Wochen | 30-90 min | Half day | 1-2 h |
Participantsdifferent | 6-30 Experten | 3-12 | 3-8 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | Value Chain Map, Lever List | Business Model Canvas, Assumption List, Business Hypotheses |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Site Reliability EngineeringIncidentLearningReliability | StrategyBusiness modelDiagnosisAnalysis | Business modelStrategyValueInnovation |