Rational Descriptions, Decisions and Designs is a reference for understanding the aspects of rational decision theory in terms of the basic formalism of information theory. The text provides ways to achieve correct engineering design decisions. The book starts with an understanding for the need to apply rationality, as opposed to uncertainty, in design decision making. Inductive logic in computers is explained where the design of the machine and the accompanying software are considered. The text then explains the functional equations and the problems of arriving at a rational description through some mathematical preliminaries. Bayes' equation and rational inference as tools for adjusting probabilities when something new is encountered in earlier probability distributions are explained. The book presents as well a case study concerning the error made in following specifications of spark plugs. The author also explains the Bernoulli trials, where a probability that a better hypothesis than that already adopted may exist. The rational measure of uncertainty and the principle of maximum entropy with sample calculations are included in the text. After considering the probabilities, the decision theory is taken up where engineering design follows. Examples regarding transmitter and voltmeter designs are presented. The book ends by explaining probabilities of success and failure as applied to reliability engineering, that it is a state of knowledge rather than the state of a thing. The text can serve as a textbook for students in technology engineering and design, and as a useful reference for mathematicians, statisticians, and fabrication engineers.

This proven and internationally recognized text teaches the methods of engineering design as a condition of successful product development. It breaks down the design process into phases and then into distinct steps, each with its own working methods. The book provides more examples of product development; it also tightens the scientific bases of its design ideas with new solution fields in composite components, building methods, mechatronics and adaptronics. The economics of design and development are covered and electronic design process technology integrated into its methods. The book is sharply written and well-illustrated.

As understanding of the engineering design and configuration processes grows, the recognition that these processes intrinsically involve imprecise information is also growing. This book collects some of the most recent work in the area of representation and manipulation of imprecise information during the syn thesis of new designs and selection of configurations. These authors all utilize the mathematics of fuzzy sets to represent information that has not-yet been reduced to precise descriptions, and in most cases also use the mathematics of probability to represent more traditional stochastic uncertainties such as un controlled manufacturing variations, etc. These advances form the nucleus of new formal methods to solve design, configuration, and concurrent engineering problems. Hans-Jurgen Sebastian Aachen, Germany Erik K. Antonsson Pasadena, California ACKNOWLEDGMENTS We wish to thank H.-J. Zimmermann for inviting us to write this book. We are also grateful to him for many discussions about this new field Fuzzy Engineering Design which have been very stimulating. We wish to thank our collaborators in particular: B. Funke, M. Tharigen, K. Miiller, S. Jarvinen, T. Goudarzi-Pour, and T. Kriese in Aachen who worked in the PROKON project and who elaborated some of the results presented in the book. We also wish to thank Michael J. Scott for providing invaluable editorial assis tance. Finally, the book would not have been possible without the many contributions and suggestions of Alex Greene of Kluwer Academic Publishers. 1 MODELING IMPRECISION IN ENGINEERING DESIGN Erik K. Antonsson, Ph.D., P.E.

Publisher Description

In August 1978, one hundred or so scholars from several countries around the world met in Crete, Greece to discuss the progress made in designing information systems and the relation of information science to this activity. This was the Third Advanced Study Institute supported by the North Atlantic Treaty Organization, Brussels, Belgium. The first Institute was conducted in 1972 and held in Seven Springs, Pennsylvania. The results of this Institute were published by Marcel Dekker and titled Information Sc. ience: Search for Identity. The'second Institute was held at the College of Librarianship, Aberystwyth, Wales in the summer of 1974. The proceedings were published by Noordhoff International Publishing, Leyden, The Netherlands, entitled Perspectives of Information Science edited by A. Debons and Hilliam Cameron. The three institutes that were conducted shared a common purpose, namely, to assess the state of affairs of information science and to share this assessment with inter national community. Information science can be said to have emerged during the past two, three decades in response to the significant increase in data-knowledge processing technology, the growth of knowledge as the result of these trends and the increase in problem solving, decision making complexity that faced all institutions at all levels throughout the world. Information systems, for many reasons, remain as an abstraction. Nevertheless, considerable funds and human efforts are being expended on them. Thus, such systems are of vital concerns to both scientists and technologists who are involved in them.

Text develops typical mathematical techniques of operations research and systems engineering and applies them to design and operation of civil engineering systems. Solutions to selected problems; solution guide available upon request. 1972 edition.