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Selected:Risk Storming ARID (Active Reviews for Intermediate Designs)MORT Analysis Fault Tree Analysis

Criterion	Architecture Risk Storming	Architecture ARID (Active Reviews for Intermediate Designs)	Operations MORT Analysis	Operations Fault Tree Analysis
Purposedifferent	Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog.	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 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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage.
Complexitydifferent	Low	Medium	High	High
Timedifferent	60-90 min	2–4 h review as a planning range; preparation and evaluation additional	Mehrere Tage bis Wochen	2-6 h
Participantsdifferent	4-12	Designers, developers as users, and facilitation	2-6	3-8
Formatdifferent	Workshop	Workshop + async	Workshop + async	Workshop + async
Outputdifferent	Annotated Diagram, Prioritized Risk List, Action Backlog	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations	Fault Tree, Critical Paths, Cause Hypotheses, Control Actions
Tagsno overlap	RiskArchitectureWorkshopValidation	ArchitectureEngineeringFeedbackValidationTasks	Root causeSafetySystemicIncident	RiskRoot causeSafety

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