Handbook of Enterprise Systems Architecture in Practice provides a comprehensive and unified overview of practical aspects of enterprise architecture. This Premier Reference Source includes a complete analysis of EA theory, concepts, strategies, implementation challenges, and case studies. The impact of effective enterprise architecture on IT governance, IT portfolio management, IT risks, and IT outsourcing are described in this authoritative reference tool. Researchers and IT professionals will gain insights into how firms can maximize the business value of IT and increase competitiveness. Topics covered: Agile and interoperable virtual enterprises, Business process modeling, Case studies, E-governance, ERP systems, Integrated enterprise lifecycle, Investment management, IT systems implementation, Virtual enterprises, Web services.