পদ্ধতির তুলনা করুন

	কোয়ালিটি ফাংশন ডিপ্লয়মেন্ট	পরীক্ষা নকশা
ক্ষেত্র	পরীক্ষামূলক নকশা	পরীক্ষামূলক নকশা
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1966 (Japan); popularised in the West ~1988	1935
প্রবর্তক	Yoji Akao	Ronald A. Fisher
ধরন	Structured quality planning and product design method	Experimental planning framework
মৌলিক উৎস	Akao, Y. (Ed.). (1990). Quality Function Deployment: Integrating Customer Requirements into Product Design. Productivity Press. ISBN: 978-0915299416	Fisher, R. A. (1935). The Design of Experiments. Oliver and Boyd.
অপর নাম	QFD, House of Quality, customer-driven engineering, voice of the customer matrix	DOE, experimental design, factorial experimentation, planned experimentation
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.	Design of Experiments (DOE) is a systematic framework for planning, conducting, and analyzing controlled experiments to determine how multiple input factors simultaneously affect one or more responses. Introduced by Ronald A. Fisher in 1935, DOE allows researchers and engineers to identify causal relationships, quantify factor effects, and find optimal settings efficiently — using far fewer runs than one-factor-at-a-time approaches. It is foundational in engineering, manufacturing, agriculture, and applied sciences.