What is integration in the system engineering process?

• A. Incorporates lower level system elements into higher level subsystems and systems.
• B. Specifies the size of logistics support required to deploy, sustain, and move a system.
• C. Evaluates alternative support concepts in terms of cost, suitability, and performance.
• D. The maintenance concept provides the overarching goals of logistics support while the support concept gives the required steps.

Answer: (A)

Integration in the system engineering process is the act of bringing together lower-level elements into higher-level subsystems and the complete system, ensuring that interfaces, data exchange, power, and control flows work together and that the combined assembly meets the overall performance and mission requirements. It follows component-level design and testing and uses incremental assembly to verify that each added piece interacts correctly with what’s already integrated. The goal is to synthesize the parts into a functioning whole and to reveal any emergent issues that only appear when components operate together. The other options describe evaluating support concepts, planning logistics, or outlining maintenance and support concepts, not the act of assembling components into a functioning system.