Systems engineering is an interdisciplinary field that focuses on designing and managing complex systems over their life cycles. It integrates various components, such as hardware, software, and human factors, to ensure that they work together effectively. The goal is to meet specific requirements while balancing performance, cost, and risk. The process involves defining system requirements, creating models, and evaluating different design alternatives. Systems engineers use tools and methodologies to analyze how different parts of a system interact, ensuring that the final product is reliable and efficient. This approach is essential in industries like aerospace, automotive, and information technology.