John Vlissides is a member of the research staff at the IBM T. J. Watson Research Center in Hawthorne, New York. He has practiced object-oriented technology for more than a decade as a designer, implementer, researcher, lecturer, and consultant. In addition to co-authoring Design Patterns: Elements of Reusable Object-Oriented Software, he is co-editor of the book Pattern Languages of Program Design 2 (both from Addison-Wesley). He and the other co-authors of Design Patterns are recipients of the 1998 Dr. Dobb's Journal Excellence in Programming Award.
James O. Coplien is a premier expert and writer on the object paradigm and C++, having worked with the language since its inception at AT&T. Currently a member of Bell Laboratories Research at Lucent Technologies, his work focuses on multi-paradigm development methods and organizational anthropology for software development processes. His previous books include Pattern Languages of Program Design (with Douglas C. Schmidt), Pattern Languages of Program Design, Volume 2 (with John M. Vlissides and Norman L. Kerth), and Advanced C++ Programming Styles and Idioms.
Norman L. Kerth is a principal consultant with Elite Systems in Portland, Oregon. He works with companies to ensure their successful transition to object-oriented technology. He includes the wider issues of specification and design activities, quality assurance, continuous process improvement, project management and the building of effective teams.