เปรียบเทียบวิธี
ดูวิธีที่เลือกเทียบกันแบบเคียงข้าง แถวที่ต่างกันจะถูกเน้นไว้
| แผนภูมิควบคุม× | การขยายหน้าที่เชิงคุณภาพ× | |
|---|---|---|
| สาขาวิชา | การออกแบบการทดลอง | การออกแบบการทดลอง |
| ตระกูล | Process / pipeline | Process / pipeline |
| ปีกำเนิด≠ | 1924 (first use); 1931 (seminal book) | 1966 (Japan); popularised in the West ~1988 |
| ผู้ริเริ่ม≠ | Walter A. Shewhart (Bell Labs) | Yoji Akao |
| ประเภท≠ | Statistical monitoring and control technique | Structured quality planning and product design method |
| แหล่งต้นตำรับ≠ | Shewhart, W. A. (1931). Economic Control of Quality of Manufactured Product. Van Nostrand. link ↗ | Akao, Y. (Ed.). (1990). Quality Function Deployment: Integrating Customer Requirements into Product Design. Productivity Press. ISBN: 978-0915299416 |
| ชื่อเรียกอื่น | Shewhart chart, process-behavior chart, SPC chart, quality control chart | QFD, House of Quality, customer-driven engineering, voice of the customer matrix |
| ที่เกี่ยวข้อง≠ | 6 | 4 |
| สรุป≠ | 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. | Quality Function Deployment (QFD) is a structured method for translating customer needs — the voice of the customer — into specific technical requirements at every stage of product or service development. Originating in Japan in the 1960s, QFD uses a matrix-based tool called the House of Quality to make customer priorities visible, link them to engineering parameters, expose trade-offs, and maintain focus on what customers actually value throughout the design process. |
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