View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations DMAIC |  Operations Waste Analysis |  Operations Root Cause Tree Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
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. | For a process that keeps people busy but creates little value, the method exposes waste. It directs attention to unnecessary movement, waiting times, rework, and overdelivery. | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | High | Low | Medium | Medium |
Timedifferent | 2-12 Wochen | 45-120 min | 1-3 h | 2-4 h |
Participantsdifferent | 3-10 | 2-8 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Waste Map, Prioritized Waste, Improvement Backlog | Cause Tree, Evidence Notes, Countermeasures | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Continuous improvementQualityProcess improvement | WasteLeanProcess improvement | Root causeTreeIncidentQuality | Root causeSafetyIncident |