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| Criterion | ![]() Decision Making Delphi Method | ![]() DevOps Blameless Postmortem | ![]() Business Strategy Business Model Canvas | ![]() Business Strategy Blue Ocean Strategy 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. | 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. | The Blue Ocean Strategy Canvas shows how an offering is positioned relative to the market. Differentiation thereby becomes tangible in value factors instead of merely being claimed. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 1-4 Wochen | 30-90 min | 1-2 h | 2-4 h |
Participantsdifferent | 6-30 Experten | 3-12 | 2-8 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Expert Forecast, Consensus Range, Assumption Notes | Postmortem Doc, Action Items, Timeline | Business Model Canvas, Assumption List, Business Hypotheses | Strategy Canvas, Value Curve, ERRC Actions |
Tagsno overlap | ForecastingExpertsDecisionStrategy | Site Reliability EngineeringIncidentLearningReliability | Business modelStrategyValueInnovation | StrategyPositioningInnovationValue |



