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Selected:Fault Isolation Blue Ocean Strategy Canvas A/B Testing ARID (Active Reviews for Intermediate Designs)

Criterion	Engineering Fault Isolation	Business Strategy Blue Ocean Strategy Canvas	Growth A/B Testing	Architecture ARID (Active Reviews for Intermediate Designs)
Purposedifferent	In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected.	The Blue Ocean Strategy Canvas shows how an offering is positioned relative to the market. Differentiation thereby becomes tangible in value factors instead of merely being claimed.	When two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects.	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.
Complexitydifferent	Medium	Medium	High	Medium
Timedifferent	30-180 min	2-4 h	1-4 Wochen	2–4 h review as a planning range; preparation and evaluation additional
Participantsdifferent	1-6	3-10	1-6	Designers, developers as users, and facilitation
Formatdifferent	Workshop + async	Workshop	Async	Workshop + async
Outputdifferent	Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area	Strategy Canvas, Value Curve, ERRC Actions	Experiment results, Decision log, Learning summary	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions
Tagsno overlap	TroubleshootingDiagnosisEngineering	StrategyPositioningInnovationValue	ExperimentsGrowthAnalyticsValidation	ArchitectureEngineeringFeedbackValidationTasks

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