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Selected:ARID (Active Reviews for Intermediate Designs)Root Cause Tree Analysis MORT Analysis Family Tree Analysis

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Operations Root Cause Tree Analysis	Operations MORT Analysis	Operations Family Tree Analysis
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.	For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie.	For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps.	For a series of incidents with a similar pattern, the method arranges individual events as branches of a common origin. It makes visible which conditions keep recurring.
Complexitydifferent	Medium	Medium	High	Medium
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	1-3 h	Mehrere Tage bis Wochen	2-4 h
Participantsdifferent	Designers, developers as users, and facilitation	2-8	2-6	2-6
Formatdifferent	Workshop + async	Workshop	Workshop + async	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Cause Tree, Evidence Notes, Countermeasures	MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations	Family Tree Diagram, Pattern Notes, Systemic Measures
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	Root causeTreeIncidentQuality	Root causeSafetySystemicIncident	Root causePatternsIncidentSystemic

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