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| Criterion |  Operations PDCA Cycle |  Operations Standard Work Analysis |  Operations 8D Problem Solving |  Operations DMAIC |
|---|---|---|---|---|
Purposedifferent | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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. |
Complexitydifferent | Low | Medium | High | High |
Timedifferent | 1 h bis mehrere Wochen | 1-3 h | 1-6 Wochen | 2-12 Wochen |
Participantsdifferent | 1-8 | 2-6 | 4-10 | 3-10 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | PDCA Log, Experiment Plan, Learning Outcome, Standard Change | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Project Charter, Measurement Plan, Cause Analysis, Control Plan |
Tagsno overlap | Continuous improvementLeanExperiments | LeanProcessQuality | QualityProblem solvingRoot cause | Continuous improvementQualityProcess improvement |