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| Criterion |  Systems Thinking Wardley Mapping |  DevOps Blameless Postmortem |  Systems Thinking Iceberg Model |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | Wardley Mapping makes visible where an offering stands today and where it can evolve. The method connects user need, value chain, and evolution stages into a strategic basis for platform, build, or buy decisions. | 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 Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring. | 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 | Medium | Medium | Low | Low |
Timedifferent | 1-3 h | 30-90 min | 30-60 min | 15-30 min |
Participantsdifferent | 2-10 | 3-12 | 2-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Wardley Map, Strategic Options, Evolution Notes | Postmortem Doc, Action Items, Timeline | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Root cause notes, Countermeasures |
Tagsno overlap | StrategySystems thinkingDynamics | Site Reliability EngineeringIncidentLearningReliability | Systems thinkingRoot causePatterns | Root causeIncidentLeanProblem solving |