Chap009运营管理.ppt

Six Sigma Quality Six Sigma uses a project/team approach A process is selected for improvement A cross-functional team is formed A six sigma ‘black belt’ is chosen to head the team The team uses the DMAIC method for finding root causes and improving the process Lean and Six Sigma Are complementary approaches to improvement: Lean seeks to eliminate waste Six sigma seeks to eliminate defects Six sigma organization is more formal and training intensive Six sigma is project focused; lean is more broad based Quality Control and Improvement in Industry 75% use process control charts More use of variable (x-bar and R) charts than attribute (p) charts because of sample size requirements Six Sigma rapidly gaining acceptance Quality control in the service industry (SERVQUAL) Summary Design of Quality Control Systems Process Quality Control Attribute Control Variables Control Using Control Charts Process Capability Continuous Improvement Six Sigma Lean and Six Sigma Quality Control and Improvement in Industry End of Chapter Nine * * * Source: presentation by Brian Koenig, 7 April 2004, University of Toledo Student APICS chapter * Copyright ? 2011 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill/Irwin Chapter Nine Quality Control and Improvement Operations ManagementContemporary Concepts and Cases 5/e Chapter Nine Outline Design of Quality Control Systems Process Quality Control Attribute Control Variables Control Using Control Charts Process Capability Continuous Improvement Six Sigma Lean and Six Sigma Quality Control and Improvement in Industry Chapter Emphasis Process definition Statistical quality control Continuous improvement Design of Quality Control Systems Break down production process into subprocesses and “internal customers” Identify “critical points” where inspection or measurement should take place Four steps in designing QC systems Steps in Designing QC Systems Identify critical points Incoming materials services Work in process Finished