This state-of-the art book deals with innovative trends in e-Commerce, e-Business and e-Government. Information Systems: The e-Business Challenge presents recent results of research and development in the following areas: -E-Business: proceeding from vision to reality; -Information and knowledge management; -Business models for e-Commerce; -Online one-stop Government; -Evaluation of the web presence; -Requirements engineering; -Designing collaborative business systems; -Guiding communities of practice; -Establishing trust in virtual organizations; -Technical design issues. Information Systems: The e-Business Challenge comprises the proceedings of Stream 5 of the 17th World Computer Congress (WCC2002), which was sponsored by the International Federation for Information Processing (IFIP) and held in Montréal, Québec, Canada in August 2002.