This collection of research papers on enterprise architecture (EA) focuses on the growing role of the government sector on IT portfolio management, outsourcing and governance in all types of e-government applications. Editor Saha (information systems management, National U. of Singapore) has included articles on such EA topics as service-oriented reference architecture for e-government, orchestrating cooperation between private and government sectors and collaborative EA for municipal governments. Students and practitioners of business process management will need a firm understanding of IT protocols to digest these technical papers. Annotation ©2009 Book News, Inc., Portland, OR (booknews.com)