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Criterion
Paper illustration for Root Cause Analysis.
Operations
Root Cause Analysis
Paper illustration of Barrier Analysis with its method-specific working model.
Operations
Barrier Analysis
Paper illustration of the Lotus Blossom working structure.
Innovation
Lotus Blossom
Purposedifferent
When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another.For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions.When a central question feels too large, the method breaks it into neighboring topic fields with their own depth of ideation. It holds structure and openness at the same time, so adjacent perspectives don't get lost. This grows an idea space out of a core problem.
Complexitydifferent
MediumMediumLow
Timedifferent
1-4 h2-4 h45-90 min
Participantsdifferent
3-82-63-10
Formatdifferent
Workshop + asyncWorkshop + asyncWorkshop
Outputdifferent
Problem Statement, Cause Hypotheses, Confirmed Causes, Action PlanBarrier Inventory, Failure Analysis per Barrier, Action BacklogLotus Diagram, Idea Themes, Shortlist
Tagsno overlap
Root causeProblem solvingQualityIncident
Root causeSafetyIncident
BrainstormingIdeationCreativityDivergenceWorkshop
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Often compared together

Methods with strong topical overlap with the current selection, not yet in the comparison.

A paper-based illustration representing Brainstorming with its core stages and visible working result.
Innovation
Brainstorming
Paper illustration for 8D Problem Solving.
Operations
8D Problem Solving
Paper illustration of Design Charrette with its method-specific working model.
Innovation
Design Charrette