World Class Quality: Using Design of Experiments to Make it Happen, Second Edition

  • 6h 55m
  • Adi K. Bhote, Keki R. Bhote
  • 2000

Ninety percent of companies can’t solve their chronic quality problems! Despite the widespread use of the powerful tools, Design of Experiments (DOE), managers and workers find the traditional use of DOE (especially the classical and Taguchi approaches) to be a complicated, ineffective, and frustrating experience.

Whether your company is involved in processing lettuce or harnessing nuclear energy, manufacturing or service, World Class Quality will show you how to:

  • Reduce unacceptably high defect levels gradually to zero defects—and ultimately towards zero variation.
  • Use the ten most powerful tools for the 21st century (and understand how, collectively, they contribute to world-class quality).
  • Coach at all levels in a company—from engineers to line operators.
  • Understand that statistical process control (SPC) is not a problem-solving tool—but only a monitoring and maintenance tool. This will help you avoid using control charts, which are outdated, cumbersome, costly, and statistically weak.
  • Prevent quality problems from reaching production or the field with the use of DOE at the design stage of a product or process.
  • A new technique called Multiple Environment Over Stress Testing (MEOST) that achieves a breakthrough in reliability.
  • A chapter that summarizes related techniques—for example, Quality Function Deployment, Total Productive Maintenance, and Benchmarking—that combine with DOE and MEOST to create a highly powerful “tool kit.”
  • Techniques for extending DOE to the service sector and to administrative applications.
  • Checklists for each DOE technique provide guidance and help avoid common pitfalls.
  • More case studies and an increased emphasis on problem-solving.

About the Authors

Keki R. Bhote is president of Keki R. Bote Associates, a consulting group specializing in quality and productivity improvement. He has consulted for more than 380 companies around the world. He is consultant emeritus at Motorola, having started as a development engineer and rising to the position of Senior Consultant for the entire company. At Motorola he was instrumental in launching the well-known “Six Sigma” process, and also played a key role in winning the prestigious Malcolm Baldrige National Quality Award. In 1995 he was selected as one of the “quality gurus of America” by Quality Digest Magazine


Adi K. Bhote is vice president of Kiki R. Bhote Associates. He specializes in helping companies characterize and optimize products and processes using DOE problem-solving techniques.

In this Book

  • The Need for and Objectives and Benefits of Design of Experiments
  • Fads, Potions, Nostrums of the Quality Movement in the Last 50 Years
  • A Powerful Tool Kit for the 21st Century
  • The Measurement of Process Capability
  • Variation—An Industrial Epidemic
  • The Three Approaches to DOE—Classical, Taguchi, and Shainin
  • A Synopsis of the 10 Powerful DOE Tools
  • The Multi-Vari Analysis—Homing In on the Red X
  • The Concentration Chart—Pinpointing Locations of Repetitive Problems
  • Components Search—Simple, Smooth Swapping
  • Paired Comparisons—An Elegant, Versatile Tool
  • Product/Process Search—Pinpointing Process Variables
  • Variables Search—The Rolls Royce in the Search for the Red X
  • The Full Factorial–Purest Technique for Separating and Quantifying Each Interaction Effect
  • B versus C—An Excellent Validation Technique
  • Scatter Plots to Achieve Realistic Specifications and Tolerances
  • Response Surface Methodology (RSM)—To Optimize Interactions
  • Positrol—Freezing Process Gains
  • Process Certification—Eliminating Peripheral Causes of Poor Quality
  • Control Charts: A Technique Whose Time Has Gone
  • Pre-Control—A Technique Whose Time Has Come
  • Multiple Environment Over Stress Tests—As Effective for Reliability as DOE Is for Quality
  • Case Studies in Sequential DOE Tools to Solve Chronic Problems
  • Learning by Doing
  • References