tailieunhanh - Lecture Operations management (6th Edition): Chapter 15 - R. Dan Reid, Nada R. Sanders

After studying this chapter you will be able to: Explain the purpose of acceptance sampling, compare and contrast single- and multiple-sampling plans, describe what an operating characteristic curve does, determine the average outgoing quality of inspected lots. | Chapter 15 - Scheduling Operations Management 6th Edition R. Dan Reid & Nada R. Sanders Copyright © 2016 John Wiley & Sons, Inc. Learning Objectives Explain basic scheduling concepts. Develop a schedule of operations. Describe the optimized production technology. Describe scheduling issues for service organizations. Scheduling Concepts Companies differentiate based on product volume and product variety Differentiation affects how the company organizes its operations Each kind of company operation needs different scheduling techniques Scheduling has specific definitions for routing, bottleneck, due date, slack and queues Scheduling High-Volume Operations High-volume (. flow operations), like automobiles, bread, gasoline can be repetitive or continuous High-volume standard items; discrete or continuous with smaller profit margins Designed for high efficiency and high utilization High volume flow operations use fixed routings Bottlenecks are easily identified | Chapter 15 - Scheduling Operations Management 6th Edition R. Dan Reid & Nada R. Sanders Copyright © 2016 John Wiley & Sons, Inc. Learning Objectives Explain basic scheduling concepts. Develop a schedule of operations. Describe the optimized production technology. Describe scheduling issues for service organizations. Scheduling Concepts Companies differentiate based on product volume and product variety Differentiation affects how the company organizes its operations Each kind of company operation needs different scheduling techniques Scheduling has specific definitions for routing, bottleneck, due date, slack and queues Scheduling High-Volume Operations High-volume (. flow operations), like automobiles, bread, gasoline can be repetitive or continuous High-volume standard items; discrete or continuous with smaller profit margins Designed for high efficiency and high utilization High volume flow operations use fixed routings Bottlenecks are easily identified Commonly use line-balancing to design the process around the required tasks Scheduling High-Volume Operations Cont’d Flow operations Processes designed to handle high volume, standard products. Routing Provides information about the operations to be performed, their sequence, the work centers, and the time standards. Characteristics of Low-Volume Operations Low-volume (. job shop operations) are designed for flexibility Use more general purpose equipment Customized products with higher margins Each product or service may have its own routing (scheduling is much more difficult) Bottlenecks move around depending upon the products being produced at any given time Made to order Gantt Charts Developed in the early 1900’s by Henry Gantt Visual representation of a schedule over time Workloads Monitor job progress Low volume tool Load charts Progress charts Load Chart Load charts illustrate the workload relative to the capacity of a resource Shows today’s