The process of determining the degree to which a model or simulation is an accurate representation of the real-world from the perspective of the intended uses of the model or simulation. [DoDD 5000.59; JCS pub 1-02; DODI 5000.XX]
Yinkqubo yokufumanisa iqondo apho imodeli okanye imfaniso ilumelo ncakasana lwehlabathi lokwenene kuluvo losetyenziso ekujoliswe kulo lwemodeli okanye lwemfaniso. [DoDD 5000.59; JCS i-pub 1-02; DODI 5000.XX]