Porovnat metody
Prohlédněte si vybrané metody vedle sebe; řádky, které se liší, jsou zvýrazněny.
| Bayesovská regulační karta× | Six Sigma DMAIC× | |
|---|---|---|
| Obor≠ | Plánování experimentů | Management kvality |
| Rodina | Process / pipeline | Process / pipeline |
| Rok vzniku≠ | Formally developed in the 1990s–2000s; roots in Shewhart (1924) | 2014 |
| Tvůrce≠ | Ulrich Menzefricke and others building on Shewhart (1924) and Bayesian inference (Bayes, 1763) | Motorola; Pyzdek & Keller |
| Typ≠ | Statistical process monitoring / quality control | Structured process improvement methodology |
| Původní zdroj≠ | Menzefricke, U. (2002). On the evaluation of control chart limits based on predictive distributions. Communications in Statistics — Theory and Methods, 31(8), 1423–1440. DOI ↗ | Pyzdek, T., & Keller, P. (2014). The Six Sigma Handbook (4th ed.). McGraw-Hill. ISBN: 978-0-07-184053-9 |
| Další názvy | Bayesian SPC chart, Bayesian monitoring chart, posterior control chart, Bayesian Shewhart chart | DMAIC Framework, Six Sigma Process Improvement Cycle, Define-Measure-Analyze-Improve-Control, Altı Sigma DMAIC |
| Příbuzné≠ | 6 | 3 |
| Shrnutí≠ | A Bayesian control chart integrates prior knowledge about a process — such as historical mean and variance — with incoming measurement data to produce dynamically updated control limits. Unlike classical Shewhart charts that fix limits from a Phase-I baseline, Bayesian charts update the posterior distribution of process parameters after each sample, yielding limits that adapt to accumulated evidence and are better calibrated under small sample sizes or non-stationary processes. | Six Sigma DMAIC is a data-driven, five-phase process improvement methodology — Define, Measure, Analyze, Improve, and Control — used to reduce defects and process variation to fewer than 3.4 defects per million opportunities. Originating at Motorola in the 1980s and systematized by practitioners including Pyzdek and Keller, it is widely adopted in manufacturing, healthcare, finance, and service industries seeking sustained quality gains. |
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