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Selected:ARID (Active Reviews for Intermediate Designs)ALPEN Method Current Reality Tree Causal Factor Analysis

Criterion	Architecture ARID (Active Reviews for Intermediate Designs)	Operations ALPEN Method	Systems Thinking Current Reality Tree	Operations Causal Factor 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.	With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time.	A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once.	For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events.
Complexitydifferent	Medium	Low	High	High
Timedifferent	2–4 h review as a planning range; preparation and evaluation additional	10-20 min daily	2-6 h	2-6 h
Participantsdifferent	Designers, developers as users, and facilitation	1	3-8	3-10
Formatdifferent	Workshop + async	Async	Workshop	Workshop + async
Outputdifferent	Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions	Daily Plan, Time Estimates, Review Notes	Current Reality Tree, Core Problems, Intervention Ideas	Event Timeline, Causal Factor Chart, Cause List, Corrective Actions
Tagsno overlap	ArchitectureEngineeringFeedbackValidationTasks	PlanningTime managementProductivityOperations	Systems thinkingRoot causeConstraintsCausality	CausalityIncidentRoot causeTimeline

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