noun
real tester; actual testing method
Computing term for a tool or method used to perform real, practical testing, as opposed to simulated or theoretical testing.
この実試験手段は、実際のハードウェア環境でソフトウェアを検証するために使われる。
This real tester is used to verify software in an actual hardware environment.
Compound of 実 (actual), 試験 (test), and 手段 (means/method). The exact derivation is uncertain; it is a technical term likely formed within computing contexts.