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Selected:ARID (Active Reviews for Intermediate Designs)Barrier Analysis Causal Loop Diagram Stock and Flow Diagram

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Operations Barrier Analysis	Systems Thinking Causal Loop Diagram	Systems Thinking Stock and Flow Diagram
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 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.	A Causal Loop Diagram makes feedback, reinforcement, and balance in a system legible. It uncovers side effects and self-reinforcement that stay hidden in linear explanations.	A Stock and Flow Diagram shows how stocks, inflows, and outflows shape a system over time. It is especially suited when growth, delays, or capacity limits determine the dynamics.
Complexitydifferent	Medium	Medium	Medium	High
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	2-4 h	1-3 h	2-6 h
Participantsdifferent	Designers, developers as users, and facilitation	2-6	2-8	1-6
Formatdifferent	Workshop + async	Workshop + async	Workshop	Workshop + async
Outputdifferent	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	Causal Loop Diagram, Feedback Notes, Leverage Points	Stock and Flow Model, Dynamics Notes, Simulation Hypotheses
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	Root causeSafetyIncident	FeedbackSystems thinkingCausalityDynamics	DynamicsSimulationFeedbackSystems thinking

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