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Quelli che s innamoran di pratica senza scienzia sono come l nocchieri ch entra in navilio sanza timone o bussola, 1 che mai ha certezza dove si vada. Leonardo da Vinci Ich habe oft bemerkt, dass wir uns durch allzuvieles Symbolisieren 2 die Sprache fu r die Wirklichkeit untu chtig machen. Christian Morgenstern This is the place to express our thanks. First of all we thank all those who over the years have actively contributed to shaping the novel software design and analysis method explained in this book. They are too numerous to be mentioned here. They all appear in some way or the other on the following pages, in particular in the bibliographical and historical Chap. 9 which can be read independently of the book. We then thank those who have helped with detailed critical comments on the draft chapters to shape the way our arguments are presented in this book: M. B orger (Diron Mu nster), I. Craggs (IBMHursley),G. DelCastillo(SiemensMunc hen),U. Gl asser(SimonFraser University, Vancouver,Canada),J. Huggins(Kettering University,Michigan, USA), B. Koblinger (IBM Heidelberg), P. Pa ppinghaus (Siemens Munc hen), A. Preller (Universit e de Montpellier, France), M. -L. Potet (INP de Gre- ble, France),W. Reisig (Humboldt-Universit at zu Berlin, Germany),H. Rust (Universit at Cottbus, Germany), G. Schellhorn (Universit at Augsburg, G- many), B. Thalheim (Universit at Cottbus, Germany) and a dozen student generationsat Universita `di Pisa. We thankM. Barmet(ETH Zur ich)for her solutions of the exercises in Chap. 8. We also thank L.

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From the reviews:

"The Turing Test gives a comprehensive, in-depth and contemporary assessment of this classic topic in artificial intelligence. This book elaborates in detail the numerous conflicting points of view on many aspects of this multifaceted, controversial subject. ... This volume is a valuable reading for research on the Turing test and for teaching undergraduate and graduate students in philosophy, computer science, and cognitive science." (Jörg Desel, Zentralblatt MATH, Vol. 1040 (9), 2004)

"Borger and Stark do an admirable job of documention and extending a method for bridging the considerable gap between theoretical system models, which often only allow for toy systems to be modeled and require proofs to be done only by hand, and real-life systems and practices." (Shrisha, Rao, Ceda Rapids, IA, Computing Reviews, February, 2004)

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