Σύγκριση μεθόδων

	Στατιστικός Έλεγχος Διεργασιών	Ανάλυση Δυνατότητας Διεργασίας (Cp, Cpk)
Πεδίο	Πειραματικός Σχεδιασμός	Στατιστική
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1924–1931	1986
Δημιουργός	Walter A. Shewhart	Victor Kane
Τύπος	Process monitoring and quality control method	Quantitative process evaluation index
Θεμελιώδης πηγή	Shewhart, W. A. (1931). Economic Control of Quality of Manufactured Product. Van Nostrand. ISBN: 978-0873890762	Kane, V. E. (1986). Process capability indices. Journal of Quality Technology, 18(1), 41–52.
Εναλλακτικές ονομασίες	SPC, statistical quality control, process control charting, Shewhart control	Process Capability Indices, Capability Study, Süreç Yeterlilik Analizi, Process Performance Analysis
Συναφείς	6	2
Σύνοψη	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.	Process Capability Analysis quantifies how well a manufacturing or business process produces output within specified tolerance limits. Introduced formally by Victor Kane in 1986, it summarises process spread and centering into dimensionless indices — most notably Cp and Cpk — allowing engineers and quality managers to judge whether a stable process is inherently capable of meeting customer or design specifications consistently.