System analysis and problem-solving, system design, and integration techniques not only can be applied to traditional manufacturing (steel, automobiles, ships, electronic devices, and semiconductors), but also to service industries (information services, consulting, communications, finance, medicine, logistics, and internet), and complex engineering systems (environment, transportation, national defense, and plants). The department adopts a broader perspective compared to other fields of engineering, so as to optimize large-scale, complex systems in manufacturing, business, engineering, and society.