International Software Testing Qualifications Board. (2026). 品質機能展開(quality function deployment). ISTQB Glossary. October 10, 2026 に https://istqb-glossary.page/jp/%E5%93%81%E8%B3%AA%E6%A9%9F%E8%83%BD%E5%B1%95%E9%96%8B-quality-function-deployment/ から取得.
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