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| Criterion |  Innovation How Might We |  DevOps Blameless Postmortem |  Systems Thinking Current Reality Tree |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | With a stuck problem carrying many implicit assumptions, the method translates observations into open, workable questions. It sharpens the problem frame without pre-thinking the solution, turning frustration or fuzziness into a search space with clear direction. | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Low | Medium | High | Low |
Timedifferent | 30–45 min | 30-90 min | 2-6 h | 15-30 min |
Participantsdifferent | 1-10 | 3-12 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | HMW Questions, Challenge Framing, Idea Prompts | Postmortem Doc, Action Items, Timeline | Current Reality Tree, Core Problems, Intervention Ideas | Root cause notes, Countermeasures |
Tagsno overlap | FramingOpportunityIdeationQuestions | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingRoot causeConstraintsCausality | Root causeIncidentLeanProblem solving |