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

In this chapter you should be able to: Name the three key questions in capacity planning, explain the importance of capacity planning, describe ways of defining and measuring capacity,. | Chapter 6 - Statistical Quality Control (SQC) Operations Management 6th Edition R. Dan Reid & Nada R. Sanders Copyright © 2016 John Wiley & Sons, Inc. Learning Objectives Describe categories of statistical quality control (SQC). Identify and describe causes of variation. Explain the use of descriptive statistics in measuring quality characteristics. Describe the use of control charts. Identify the differences between x-bar and R-charts. Learning Objectives - cont'd Identify the differences between p- and c-charts. Explain the meaning of process capability and the process capability index. Explain the concept Six Sigma. Explain the process of acceptance sampling and describe the use of operating characteristic (OC) curves. Identify decisions that managers must make when implementing SPC. Describe the challenges inherent in measuring quality in service organizations. What is SQC? Statistical Quality Control (SQC) the term used to describe the set of statistical tools . | Chapter 6 - Statistical Quality Control (SQC) Operations Management 6th Edition R. Dan Reid & Nada R. Sanders Copyright © 2016 John Wiley & Sons, Inc. Learning Objectives Describe categories of statistical quality control (SQC). Identify and describe causes of variation. Explain the use of descriptive statistics in measuring quality characteristics. Describe the use of control charts. Identify the differences between x-bar and R-charts. Learning Objectives - cont'd Identify the differences between p- and c-charts. Explain the meaning of process capability and the process capability index. Explain the concept Six Sigma. Explain the process of acceptance sampling and describe the use of operating characteristic (OC) curves. Identify decisions that managers must make when implementing SPC. Describe the challenges inherent in measuring quality in service organizations. What is SQC? Statistical Quality Control (SQC) the term used to describe the set of statistical tools used by quality professionals to evaluate organizational quality. 3 Categories of SQC Statistical process control (SPC) inspecting a random sample of an output from process, within range and functioning properly Descriptive statistics the mean, standard deviation, and range Involve inspecting the output from a process Quality characteristics are measured and charted Helps identify in-process variations Acceptance sampling used to randomly inspect a batch of goods to determine acceptance/rejection Does not help to catch in-process problems Sources of Variation Variation exists in all processes. Variation can be categorized as either: Common or Random causes of variation, or Random causes that we cannot identify Unavoidable, .; slight differences in process variables like diameter, weight, service time, temperature Assignable causes of variation Causes can be identified Eliminate cause .; poor employee training, worn tool, machine needing repair Descriptive Statistics The