noun
capability test; functional test
Computing term for testing whether a system or component meets specified functional requirements.
新システムの機能試験を来週実施する予定です。
We plan to conduct capability tests on the new system next week.
性能試験 focuses on performance (speed, load, etc.), while 機能試験 focuses on whether functions work correctly.
Compound of 機能 (function) and 試験 (test).