Operations research is a discipline that uses mathematical methods to optimize complex systems and decision-making processes. It involves the application of mathematical modeling, statistical analysis, and computational algorithms to find the best solutions to problems such as resource allocation, production scheduling, inventory management, and transportation logistics. Operations research is used in a wide range of industries, including manufacturing, healthcare, finance, and transportation, to improve efficiency, minimize costs, and optimize performance. It is a highly interdisciplinary field that draws on principles from mathematics, computer science, economics, and engineering to support decision-making and improve operations management.