Theories underlying operations management serve as foundational frameworks to optimize processes, resources, and outputs within organizations. These theories encompass various paradigms, including lean production, total quality management $($TQM$),$ Six Sigma, and the theory of constraints. They aim to enhance efficiency, quality, and responsiveness in production and service delivery. By analyzing factors such as workflow, inventory management, and supply chain dynamics, operations management theories provide strategies for achieving operational excellence and competitive advantage in today's dynamic business environment.