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| Criterion |  Operations DMAIC |  Operations ALPEN Method |  Operations Fault Tree Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | High | Low | High | Low |
Timedifferent | 2-12 Wochen | 10-20 min daily | 2-6 h | 30-60 min |
Participantsdifferent | 3-10 | 1 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Async | Workshop + async | Workshop |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Daily Plan, Time Estimates, Review Notes | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | Continuous improvementQualityProcess improvement | PlanningTime managementProductivityOperations | RiskRoot causeSafety | Root causeQualityOperations |