Scheduling

• Scheduling : establishing the timing of the use of equipment ,facilities, and human activities in an organization.

• Scheduling operations

• 1) Scheduling in High Volume systems

• High volume systems are characterized by standardized equipment and activities that provide identical or similar operations on customers or products as they pass through the system.

• Flow systems : High volume system with standardized equipment and activities.

• Major aspect in flow system is line balancing.

• Scheduling for the flow system is known as Flow shop Scheduling

• Success of flow system depends on Process and product design,preventive maintenance,minimization of quality problems, reliability of timing supplies.

• 2)Scheduling in low-volume systems

• Products are made to order and orders usually differ considerably in terms of processing requirements,material needed ,processing time and processing sequence and set ups.

• Job-shop Scheduling : scheduling for low volume systems with many variation in requirements.

• Job shop processing give rise to two basic issues for schedulers:

• How to distribute the workload among work centers.

• What job processing sequence to use.