השוואת שיטות
סקרו את השיטות שבחרתם זו לצד זו; שורות שבהן יש הבדל מודגשות.
| תרשים בקרה× | ניתוח יכולת תהליך (Cp, Cpk)× | |
|---|---|---|
| תחום≠ | תכנון ניסויים | סטטיסטיקה |
| משפחה | Process / pipeline | Process / pipeline |
| שנת המקור≠ | 1924 (first use); 1931 (seminal book) | 1986 |
| הוגה השיטה≠ | Walter A. Shewhart (Bell Labs) | Victor Kane |
| סוג≠ | Statistical monitoring and control technique | Quantitative process evaluation index |
| מקור מכונן≠ | Shewhart, W. A. (1931). Economic Control of Quality of Manufactured Product. Van Nostrand. link ↗ | Kane, V. E. (1986). Process capability indices. Journal of Quality Technology, 18(1), 41–52. DOI ↗ |
| כינויים | Shewhart chart, process-behavior chart, SPC chart, quality control chart | Process Capability Indices, Capability Study, Süreç Yeterlilik Analizi, Process Performance Analysis |
| קשורות≠ | 6 | 2 |
| תקציר≠ | A control chart is a time-series graph with statistically derived upper and lower control limits that separates the natural, random variation of a process (common cause) from unusual, assignable variation (special cause). Invented by Walter Shewhart at Bell Labs in 1924, control charts remain the foundational tool of Statistical Process Control and are used across manufacturing, healthcare, software, and service industries to monitor whether a process remains stable and predictable over time. | 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. |
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