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Selected:System Dynamics Simulation ARID (Active Reviews for Intermediate Designs)Fake Door Test Learning Card

Criterion	Systems Thinking System Dynamics Simulation	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Fake Door Test	Product Discovery Learning Card
Purposedifferent	System Dynamics Simulation makes assumptions about time, delay, and feedback testable through experiments. It draws relationships, patterns, and feedback loops. The result is captured as a simulation model and scenario reports.	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.	When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small.	The Learning Card connects traceable test results to a reasoned next action while keeping the limits of the insight visible.
Complexitydifferent	High	Medium	Medium	Low
Timedifferent	Mehrere Tage bis Wochen	2–4 h review as a planning range; preparation and evaluation additional	1-5 Tage	25-40 min
Participantsdifferent	1-5 Modellierende, Stakeholder asynchron	Designers, developers as users, and facilitation	Nutzertraffic	1-5
Formatdifferent	Async	Workshop + async	Async	Workshop + async
Outputdifferent	Simulation Model, Scenario Reports	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Click Data, Interest Signal, Learning Decision	Learning Card with evidence and next action
Tagsno overlap	Systems thinkingDynamicsSimulationAnalysis	ArchitectureEngineeringFeedbackValidationTasks	ValidationExperimentsDemandDiscovery	ExperimentsValidationDiscoveryLearning

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