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Selected:ARID (Active Reviews for Intermediate Designs)Family Tree AnalysisIceberg ModelBarrier Analysis
| Criterion | ![]() Architecture ARID (Active Reviews for Intermediate Designs) | ![]() Operations Family Tree Analysis | ![]() Systems Thinking Iceberg Model | ![]() Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring. | 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 risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 2-4 h | 30-60 min | 2-4 h |
Participantsdifferent | Designers, developers as users, and facilitation | 2-6 | 2-10 | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Family Tree Diagram, Pattern Notes, Systemic Measures | Iceberg Worksheet, Pattern Notes, Intervention Ideas | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | Root causePatternsIncidentSystemic | Systems thinkingRoot causePatterns | Root causeSafetyIncident |



