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Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
Introduction to SQC - D Montgomery - Unit 2 rev
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Introduction to SQC - D Montgomery - Unit 2 rev

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  • 1. Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 1
  • 2. Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 2
  • 3. Learning ObjectivesLearning Objectives Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 3
  • 4. DMAICDMAIC • DMAIC is a structure problem-solving techniqueDMAIC is a structure problem solving technique consisting of the following steps: – Define – Measure – Analyze – Improve – Control DMAIC i ll i d i h i i b i• DMAIC is usually associated with six sigma, but it can be used with any business or process improvement effort Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 4 improvement effort
  • 5. Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 5
  • 6. Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 6
  • 7. ProjectsProjects • Essential part of DMAICEssential part of DMAIC • Breakthrough opportunity i i l i i• Financial systems integration • Value opportunity of a project must be clear • Project selection • Project managementProject management Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 7
  • 8. If the improvement goal is 50%, then x = 11 years, and if it’s 75% then x = 5 years. Must focus on projects that have high impact Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 8
  • 9. 2.2 The Define Step Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 9
  • 10. A process map or value stream map may also beA process map or value stream map may also be prepared. These should be completed by at least the end of the Measure step. Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 10
  • 11. The Define TollgateThe Define Tollgate Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 11
  • 12. 2 3 The Measure Step2.3 The Measure Step • Purpose is to evaluate and determine the present process state • Identify key process input variables (KPIV) and key process output variables (KPOV)process output variables (KPOV) • Data – from historical records, from sampling, from observational studies Hi b l P h di• Histograms, box plots, Pareto charts, scatter diagrams, stem-and-leaf diagrams may all be useful • In some businesses, the measurement system must beIn some businesses, the measurement system must be developed • Measurement systems capability may be important Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 12
  • 13. The Measure TollgateThe Measure Tollgate Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 13
  • 14. 2 4 The Analyze Step2.4 The Analyze Step • Determine cause-and-effect relationshipsDetermine cause-and-effect relationships • Sources of variability – common cause versus assignable causeassignable cause • Tools – control charts, hypothesis testing, fid i l i d l f ilconfidence intervals, regression models, failure modes and effects analysis • Discrete event simulation Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 14
  • 15. The Analyze TollgateThe Analyze Tollgate Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 15
  • 16. 2 5 The Improve Step2.5 The Improve Step • Process redesign to reduce bottlenecksProcess redesign to reduce bottlenecks • Mistake-proofing S i i l l i l l d i d• Statistical tools – particularly designed experiments • DOX can be applied to either the physical process or a computer model of the process • Pilot test the solution to confirm that it will solve the problem Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 16 p
  • 17. The Improve TollgateThe Improve Tollgate Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 17
  • 18. 2 6 The Control Step2.6 The Control Step • Complete all remaining work on projectComplete all remaining work on project • Provide the process owner with a process control plancontrol plan • Training documents (if appropriate) should be id dprovided • Methods and metrics for future audits • Transition plan to the new process might include a validation step Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 18 p
  • 19. The Control TollgateThe Control Tollgate Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 19
  • 20. Chapter Case StudiesChapter Case Studies • Litigation documentsLitigation documents • Improving on-time delivery i i li i b k• Improving service quality in a bank Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 20
  • 21. Learning ObjectivesLearning Objectives Chapter 2 Introduction to Statistical Quality Control, 6th Edition by Douglas C. Montgomery. Copyright (c) 2009 John Wiley & Sons, Inc. 21

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