The Systems Engineering method recognizes each system is an integrated whole even though composed of devices, specialized structures and sub-functions. It is further recognized that any system has a number of objectives and that the balance between them may differ widely from system to system. The methods seek to optimize the overall system function according to the weighted objectives and to achieve maximum capability of its parts.
"Integrating of Systems Engineering with Component Development." Electrical Manufacturing, August 1959; As cited in: Allen B. Rosenstein (1965) "Systems engineering and Modern Engineering Design"