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| Criterion |  Agile Story Splitting |  Operations 5 Whys |  Operations A3 Problem Solving |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | When a story becomes too large for a clean flow, it breaks scope down along value and risk. It shapes the work into a form that ships earlier and is easier to verify. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 30-60 min | 15-30 min | 45-90 min | 2-4 h |
Participantsdifferent | 2-6 | 2-6 | 2-5 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Smaller Stories, Acceptance Criteria, Split Rationale | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | BacklogIterationDelivery | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations | Root causeSafetyIncident |