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| Criterion |  Systems Thinking Iceberg Model |  Operations A3 Problem Solving |  Systems Thinking Behavior Over Time Graph |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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 complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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 | Low | Low |
Timedifferent | 30-60 min | 45-90 min | 20-45 min | 15-30 min |
Participantsdifferent | 2-10 | 2-5 | 1-10 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Iceberg Worksheet, Pattern Notes, Intervention Ideas | A3 Report, Action Plan, Root Cause Analysis | Behavior Over Time Graph, Trend Hypotheses, Key Events | Root cause notes, Countermeasures |
Tagsno overlap | Systems thinkingRoot causePatterns | LeanProblem solvingCoachingOperations | Systems thinkingPatternsDynamics | Root causeIncidentLeanProblem solving |