This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Modeling and Simulation Integrated Use ja. ja Translation of File Modeling and Simulation Integrated Use Original source Defense Acquisition University Press Japanized Iwao Matsumoto File Modeling and Simulation Integrated Use PDUSGov Diagrams from Systems Engineering Fundamentals