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| Criterion |  Systems Thinking Behavior Over Time Graph |  DevOps Blameless Postmortem |  Operations 5 Whys |  Systems Thinking Iceberg Model |
|---|---|---|---|---|
Purposedifferent | A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots. | 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. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 20-45 min | 30-90 min | 15-30 min | 30-60 min |
Participantsdifferent | 1-10 | 3-12 | 2-6 | 2-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Behavior Over Time Graph, Trend Hypotheses, Key Events | Postmortem Doc, Action Items, Timeline | Root cause notes, Countermeasures | Iceberg Worksheet, Pattern Notes, Intervention Ideas |
Tagsno overlap | Systems thinkingPatternsDynamics | Site Reliability EngineeringIncidentLearningReliability | Root causeIncidentLeanProblem solving | Systems thinkingRoot causePatterns |