ACKNOWLEDGMENTS

We are grateful to the on-line discussion forums, papers, research, and suggestions of the DAML Services Coalition (also known as the OWL-S Coalition) as a whole: Anupriya Ankolenkar, Mark Burstein, Grit Decker, Jerry Hobbs, Ora Lassila, David Martin, Drew McDermott, Sheila McIlraith, Srini Narayanan, Massimo Paolucci, Bijan Parsia, Terry Payne, Marta Sabou, Monika Solanki, Tran Cao Son, Naveen Srinvasan, Katia Sycara, and Honglei Zeng. They generously shared their ideas and work with regard to OWL-S Semantic Web Services.

Thanks to the World Wide Web Consortium www.w3.org/, which provides not only recommendations and specifications, but also references, discussion groups, documentation, and software tools for public review. In particular, Chapters 5, 6, and 9 of this book were based on the published material of www.w3.org.

We are indebted to several organizations for the special permission to include material from previous works including: Print Gallery by M. C. Escher, The M. C. Escher Company-Holland (www.mcescher.com), The Escher and the Droste Effect by Hendrik Lenstra and Bart de Smit (escherdroste.math.leidenuniv.nl/), various figures and tables from the authors’ previous work with publishers Addison-Wesley and A. P. Peters, Inc., and the “spot” example from the work of X. Wang (charlestoncore.musc.edu/ont/example/).

We would like to acknowledge The Cambridge Quintet by J. L. Casti as the inspiration for many of the debate concepts included in the interludes ...

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