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Criterion
Design sheets and interface cards connect to jointly written pseudocode with highlighted unresolved questions.
Architecture
ARID (Active Reviews for Intermediate Designs)
Game Day workspace showing the question, observations, and next decision.
DevOps
Game Day
Causal Loop Diagram workspace showing the question, observations, and next decision.
Systems Thinking
Causal Loop Diagram
Stock and Flow Diagram method illustration showing its working structure
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.In preparing for rare incidents, the method tests response capability under controlled conditions. It shows where assumptions about stability, roles, and recovery are too optimistic.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
MediumHighMediumHigh
Timedifferent
2–4 h review as a planning range; preparation and evaluation additionalHalber Tag1-3 h2-6 h
Participantsdifferent
Designers, developers as users, and facilitation5-202-81-6
Formatdifferent
Workshop + asyncWorkshopWorkshopWorkshop + async
Outputdifferent
Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisionsSimulation Notes, Gaps List, Updated RunbooksCausal Loop Diagram, Feedback Notes, Leverage PointsStock and Flow Model, Dynamics Notes, Simulation Hypotheses
Tagsno overlap
ArchitectureEngineeringFeedbackValidationTasks
ResilienceOperationsIncident
FeedbackSystems thinkingCausalityDynamics
DynamicsSimulationFeedbackSystems thinking
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