accounting systems, order-entry systems, etc. What was previously used to be a proprietary system that stands alone now for the most part replaced by a system of interdependent more or less standard form large networks of production and usage. Similarly, organizations abandon their portfolios homegrown IT system and replace it with a system (ERP) Enterprise Resource Planning singular. Network Information Technology: Diffusion and Adoption offers contributions from academics and practitioners who study network information systems from the point of view of diffusion and adoption. Themes related to the conceptualization of diffusion and adoption of network information systems is discussed along with the study of the diffusion of network information systems in public sector institutions and private companies. This book contains the edited process of IFIP Conference on Diffusion and Application Technology Information Network, sponsored by the International Federation for Information Processing (IFIP) Working Group 6.8 and held in Copenhagen, Denmark in October 2003.