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Criterion
Design sheets and interface cards connect to jointly written pseudocode with highlighted unresolved questions.
Architecture
ARID (Active Reviews for Intermediate Designs)
Paper illustration of MORT Analysis with its method-specific working model.
Operations
MORT Analysis
Iceberg Model method illustration showing its working structure
Systems Thinking
Iceberg Model
Paper illustration for Behavior Over Time Graph.
Systems Thinking
Behavior Over Time Graph
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 safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps.The Iceberg Model separates visible events from patterns, structures, and mental models. This turns a single observation into a deeper understanding of why a problem keeps recurring.A Behavior Over Time Graph shows how a metric or observation develops over time. The method makes trends, breaks, and recurring patterns visible that get lost in snapshots.
Complexitydifferent
MediumHighLowLow
Timedifferent
2–4 h review as a planning range; preparation and evaluation additionalMehrere Tage bis Wochen30-60 min20-45 min
Participantsdifferent
Designers, developers as users, and facilitation2-62-101-10
Formatsame
Workshop + asyncWorkshop + asyncWorkshop + asyncWorkshop + async
Outputdifferent
Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisionsMORT Worksheets, Findings per Branch, Corrective Actions, Systemic RecommendationsIceberg Worksheet, Pattern Notes, Intervention IdeasBehavior Over Time Graph, Trend Hypotheses, Key Events
Tagsno overlap
ArchitectureEngineeringFeedbackValidationTasks
Root causeSafetySystemicIncident
Systems thinkingRoot causePatterns
Systems thinkingPatternsDynamics
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