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Selected:Causal Factor AnalysisA/B TestingARID (Active Reviews for Intermediate Designs)Barrier Analysis
| Criterion |  Operations Causal Factor Analysis |  Growth A/B Testing |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | 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 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 | High | High | Medium | Medium |
Timedifferent | 2-6 h | 1-4 Wochen | 2–4 h review as a planning range; preparation and evaluation additional | 2-4 h |
Participantsdifferent | 3-10 | 1-6 | Designers, developers as users, and facilitation | 2-6 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Experiment results, Decision log, Learning summary | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | CausalityIncidentRoot causeTimeline | ExperimentsGrowthAnalyticsValidation | ArchitectureEngineeringFeedbackValidationTasks | Root causeSafetyIncident |