"E business" inextricably aligns technological advances with business models, business repurposing efforts and organizational structures in order to support end to end business processes that span the boundaries of the extended enterprise value chain. Using lots of real world examples, this incisive guide helps people understand the theory and practice of e business today. It offers a thorough examination of the relationship of e business to business strategy, from business models, supply chains and integrated value chains to governance structures. It covers key topics that businesses need to consider with designing an e business strategy, from XML and business processes to electronic intermediaries and markets, e procurement and e business networks. It provides a complete overview of the technical foundations of e business, with discussions of security, middleware, component based development, legacy applications, enterprise application integration, web services and business protocols.