Systems engineering involves a recognition, appreciation, and integration of all aspects of an organization or a facility. A system is defined as a collection of interrelated elements working together in synergy to produce a composite output that is greater than the sum of the individual outputs of the components. A system view of a process facilitates a comprehensive inclusion of all the factors involved in the process. Systems engineering is the application of a multi-faceted problem through a systematic collection and integration of parts of the problem with respect to the lifecycle of the problem. It is the branch of engineering concerned with the development, implementation, and use of large or complex systems.

It focuses on specific goals of a system considering the specifications, prevailing constraints, expected services, possible behaviours, and structure of the system. It also involves a consideration of the activities required to assure that the system’s performance matches the stated goals. Systems engineering addresses the integration of tools, people, and processes required to achieve a cost-effective and timely operation of the system.