International Software Testing Qualifications Board. (2026). 운영 환경(operational environment). ISTQB Glossary. Retrieved October 10, 2026, from https://istqb-glossary.page/kr/%E1%84%8B%E1%85%AE%E1%86%AB%E1%84%8B%E1%85%A7%E1%86%BC-%E1%84%92%E1%85%AA%E1%86%AB%E1%84%80%E1%85%A7%E1%86%BC-operational-environment/.
