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| Criterion |  Architecture Architecture Decision Record |  Systems Thinking Iceberg Model |  Operations Causal Factor Analysis |
|---|---|---|---|
Purposedifferent | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | 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 an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. |
Complexitydifferent | Low | Low | High |
Timedifferent | 15-45 min | 30-60 min | 2-6 h |
Participantsdifferent | 1-3 | 2-10 | 3-10 |
Formatdifferent | Async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Systems thinkingRoot causePatterns | CausalityIncidentRoot causeTimeline |
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