পদ্ধতির তুলনা করুন
নির্বাচিত পদ্ধতিগুলো পাশাপাশি পর্যালোচনা করুন; যে সারিগুলোয় পার্থক্য আছে সেগুলো চিহ্নিত করা হয়।
| কোয়ালিটি ফাংশন ডিপ্লয়মেন্ট× | Six Sigma DMAIC× | |
|---|---|---|
| ক্ষেত্র≠ | পরীক্ষামূলক নকশা | মান ব্যবস্থাপনা |
| পরিবার | Process / pipeline | Process / pipeline |
| উদ্ভবের বছর≠ | 1966 (Japan); popularised in the West ~1988 | 2014 |
| প্রবর্তক≠ | Yoji Akao | Motorola; Pyzdek & Keller |
| ধরন≠ | Structured quality planning and product design method | Structured process improvement methodology |
| মৌলিক উৎস≠ | Akao, Y. (Ed.). (1990). Quality Function Deployment: Integrating Customer Requirements into Product Design. Productivity Press. ISBN: 978-0915299416 | Pyzdek, T., & Keller, P. (2014). The Six Sigma Handbook (4th ed.). McGraw-Hill. ISBN: 978-0-07-184053-9 |
| অপর নাম | QFD, House of Quality, customer-driven engineering, voice of the customer matrix | DMAIC Framework, Six Sigma Process Improvement Cycle, Define-Measure-Analyze-Improve-Control, Altı Sigma DMAIC |
| সম্পর্কিত≠ | 4 | 3 |
| সারসংক্ষেপ≠ | 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. | 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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