How does scheduling coordinate production and service operations?

"Closely related to routing is scheduling. Scheduling involves specifying and controlling the time required for each step in the production process. The operations manager prepares timetables showing the most efficient sequence of production and then tries to ensure that the necessary materials and labor are in the right place at the right time. Scheduling is important to both manufacturing and service firms. The production manager in a factory schedules material deliveries, work shifts, and production processes. Trucking companies schedule drivers, clerks, truck maintenance, and repairs in accordance with customer transportation needs. Scheduling at a college entails deciding when to offer which courses, in which classrooms, with which instructors. A museum must schedule special exhibits, ship works to be displayed, market its offerings, and conduct educational programs and tours. Scheduling can range from simple to complex. Giving numbers to customers waiting to be served in a bakery and making interview appointments with job applicants are examples of simple scheduling. Organizations that must produce large quantities of products or services or service a diverse customer base face more complex scheduling problems. Three common scheduling tools used for complex situations are Gantt charts, the critical path method, and PERT."