Introduction to Quality Control

TO QUALITY CONTROL 3A CORPORATION Originally printed in Japan as "Dai-3-pan Hinshitsu Kanri Nyumon" (Introduction to Quality Control 3rd Edition) by Kaoru Ishikawa. Kaoru Ishikawa 1989, published by JUSE Press Ltd. Softcover reprint of the hardcover 1st edition 1989 Distributed outside Japan and North America by: CHAPMAN & HALL 2 -6 Boundary Row, London SEl 8HN, UK. ISBN-13: 978-94-011-7690-3 e-ISBN-13: 978-94-011-7688-0 DOl: 10. 1007/978-94-011-7688-0 All rights reserved. No part of this book may be reproduced in any form or by any means, without permission in writing from the publisher. First Printing . . . . . October 1990 Translated by J. H. Loftus Contents Preface XVII Acknowledgment XIX CHAPTER 1 WHAT IS QUALITY CONTROL? 1 1. 1 What is Quality Control? 1 1. 1. 1 The Definition of Quality Control 1. 1. 2 Some Misunderstandings about Quality Control and Total Quality Control 1. 1. 3 The Benefits of Companywide Quality Control 1. 2 The History and Current Status of Quality Control 7 1. 3 Advances in Quality Assurance 13 1. 4 What is Quality? 15 1. 4. 1 Quality to Satisfy the Consumer 1. 4. 2 True Quality Characteristics and Substitute Characteristics; Product Research 1. 4. 3 Quality Analysis and Product Research 1. 4. 4 Clarifying Definitions Concerning Quality 1. 4. 5 What are Good Quality and Good Products? 1. 5 What is Control? 36 1. 5. 1 The Old-Fashioned Approach to Control 1. 5. 2 Control Methods and Philosophy 1. 5. 3 Action for Recurrence Prevention ("Permanent Fix") 1.