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| Multisvars Statistisk Proceskontrol× | Statistisk proceskontrol× | |
|---|---|---|
| Fagområde | Forsøgsdesign | Forsøgsdesign |
| Familie | Process / pipeline | Process / pipeline |
| Oprindelsesår≠ | 1947 (Hotelling's T²); mature multivariate SPC framework 1980s–2000s | 1924–1931 |
| Ophavsperson≠ | Harold Hotelling (T² statistic); extended by Alt, Lowry, Montgomery, Mason & Young | Walter A. Shewhart |
| Type≠ | Multivariate quality-monitoring procedure | Process monitoring and quality control method |
| Oprindelig kilde≠ | Lowry, C. A., & Montgomery, D. C. (1995). A review of multivariate control charts. IIE Transactions, 27(6), 800–810. DOI ↗ | Shewhart, W. A. (1931). Economic Control of Quality of Manufactured Product. Van Nostrand. ISBN: 978-0873890762 |
| Aliasser | Multivariate SPC, MSPC, Multi-response SPC, Multivariate statistical process control | SPC, statistical quality control, process control charting, Shewhart control |
| Relaterede | 6 | 6 |
| Resumé≠ | Multi-response statistical process control (multivariate SPC) extends classical univariate control charting to processes where two or more correlated quality characteristics must be monitored simultaneously. By treating all responses as a joint distribution, it detects shifts that would be invisible when each response is charted independently, reducing false alarms and improving the sensitivity of process monitoring in manufacturing and service contexts. | Statistical Process Control (SPC) is a data-driven quality method that uses statistical techniques — primarily control charts — to monitor a manufacturing or service process over time. By distinguishing natural process variation (common cause) from unusual, actionable variation (special cause), SPC enables practitioners to maintain processes in a stable, predictable state and to detect problems early, before defective output reaches customers. |
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