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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)
Stock and Flow Diagram method illustration showing its working structure
Systems Thinking
Stock and Flow Diagram
Iceberg Model method illustration showing its working structure
Systems Thinking
Iceberg Model
Paper illustration for Behavior Over Time Graph.
Systems Thinking
Behavior Over Time Graph
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.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.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.A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots.
Complexitydifferent
MediumHighLowLow
Timedifferent
2–4 h review as a planning range; preparation and evaluation additional2-6 h30-60 min20-45 min
Participantsdifferent
Designers, developers as users, and facilitation1-62-101-10
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisionsStock and Flow Model, Dynamics Notes, Simulation HypothesesIceberg Worksheet, Pattern Notes, Intervention IdeasBehavior Over Time Graph, Trend Hypotheses, Key Events
Tagsno overlap
ArchitectureEngineeringFeedbackValidationTasks
DynamicsSimulationFeedbackSystems thinking
Systems thinkingRoot causePatterns
Systems thinkingPatternsDynamics
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