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- "Better Products Faster: A Practice Guide to Knowledge-Based Systems for
- Manufacturers", by William H. VerDuin published by IRWIN Professional
- Publishing (1333 Burr Ridge Parkway Burr Ridge, IL 60521) 1995, 223 pp, $40
- (list)
-
- A Book Review by Norman C. Frank, PE, CQE, CQA
- CER Corporation, Washington, DC
-
- "Better Products Faster" covers the use of knowledge-based systems as applied
- to manufacturing. It provides a good, understandable overview of the nature,
- benefits, and the strategic opportunities presented by the three knowledge-
- based systems called expert systems, fuzzy logic, and neural networks. Don't
- let these terms scare you. Chances are you have one or more in your facility
- right now. All three are part of the bigger field defined by artificial
- intelligence (AI). This book is good for anyone who is looking for a better
- way to design and manufacture products.
-
- The authors recognize the new market force of "customer pull" that has
- replaced the old "salesman push". An "agile enterprise" is a company that
- can provide the rapid and often radical changes in products to meet the
- equally rapid and radical changes in the marketplace demanded by the
- customer. Computer-based design and manufacturing technologies and
- knowledge-based systems help provide such agility.
-
- The first two chapters discuss the state of the art, the benefits, and the
- limitations of computer-aided design (CAD) and computer-aided manufacture
- (CAM). Included is a description of the parametric-based and feature-based
- design approach.
-
- Expert systems capture the problem-solving knowledge of experts in the form
- of rules of thumb, called heuristics, for use in monitoring and diagnostic
- applications by people who need the expertise. Fuzzy logic-based technology
- is also based on "relative" rules and is primarily used in control
- applications to maintain temperature or process parameters. Neural net
- technology can learn and discover relationships in data. Neural nets are
- used for pattern recognition, process optimization, and quality improvements.
-
- Four chapters describe problem solving capabilities and provide case studies
- of actual application of each of the technologies. Examples are drawn from
- the automotive, shipbuilding, nuclear reactors, packaging, computer
- configuration, and boiler design. Chapter 5 includes a description of rapid
- prototyping technology to make prototype parts in hours rather than days or
- longer. Although the problems of developing each of these systems are
- alluded to, missing is a strong discussion of the problems in developing each
- of these systems.
-
- Subsequent chapters provide additional examples of application and successes
- of knowledge based systems. Case studies come from many different
- industries, including manufacturing, process, and soft industries. The final
- chapters focus on the future of computer-based systems combined with
- strategic partnering to form a virtual corporation. The trend is toward real
- time knowledge and knowledge of the immediate future of a process with the
- capability of predicting the future.
-
- Thomas Hobbes said, "Faulty and sloppy definitions lead to faulty and sloppy
- reasoning." The author recognized this and included a relatively strong
- glossary of terms used. The glossary goes beyond just giving a definition to
- giving a good explanation of the term and its use. Terms defined in the
- glossary are in bold face type in the text.
-
- ----------------
- Mr. Frank has over 25 years experience in the field of quality, in the areas
- of nuclear quality assurance, research and development, and consulting. He
- is currently in Washington, D.C., with CER Corporation out of Las Vegas,
- Nevada.
-