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Selected:Getting Things Done Test Card ARID (Active Reviews for Intermediate Designs)Hypothesis Prioritization Canvas

Criterion	Operations Getting Things Done	Product Discovery Test Card	Architecture ARID (Active Reviews for Intermediate Designs)	Product Discovery Hypothesis Prioritization Canvas
Purposedifferent	With many open commitments and ideas in daily life, a reliable external storage system emerges. The method relieves the mind so priority and context don't have to compete in memory.	The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success.	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 many hypotheses compete for attention, it brings order to their learning sequence and importance. It separates problem, assumption, solution, and evidence. The result is captured as a prioritization canvas and a hypothesis backlog.
Complexitydifferent	Medium	Low	Medium	Medium
Timedifferent	1-2 h Setup, laufend	20-35 min	2–4 h review as a planning range; preparation and evaluation additional	60-90 min
Participantsdifferent	1	1-5	Designers, developers as users, and facilitation	3-8
Formatdifferent	Async	Workshop + async	Workshop + async	Workshop
Outputdifferent	Action Lists, Project List, Review Routine	Test Card with a pre-set threshold	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Prioritization Canvas, Hypothesis Backlog
Tagsno overlap	ProductivityPlanningTasksExecution	ExperimentsValidationDiscoveryHypothesis	ArchitectureEngineeringFeedbackValidationTasks	ExperimentsPrioritizationDiscoveryHypothesis

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