International Software Testing Qualifications Board. (2026). 問題マネジメント（problem management）. ISTQB Glossary. October 10, 2026 に https://istqb-glossary.page/jp/%E5%95%8F%E9%A1%8C%E3%83%9E%E3%83%8D%E3%82%B7%E3%83%A1%E3%83%B3%E3%83%88-problem-management/ から取得.
