Systems engineers can use the results to determine the most optimum system architecture and specification or perform trade studies to make better informed design decisions.
系统工程师可以使用结果来决定最优的系统结构和规格，或者执行研究以作出更优化的设计决定。
2
Design and specification of substantial systems.
大型系统的设计及规范。
3
This is because CAD systems require exact sharp specification and dimensions for geometry creation even though these details are probably unnecessary and often unknown at the concept design stage.