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The balance of theory and practice in this text makes Information Systems: Foundation of E-Business, fourth edition, a resource that business and IT students can use even after new generations of technology have replaced those of today. Its companion web site (www.prenhall.com/alter) extends the book's coverage. This text's updated coverage of the work system framework and principles, e-business and e-commerce, value and supply chains, ERP systems, networks, and system security, help explain how technology applications make a difference. *presents a practical, straightforward approach for attaining business results, recognizing possibilities, and avoiding the wasted time and effort consumed by technology initiatives that never achieve their goals.*combines the vocabulary of today's technologies with problem solving tools and methods that business and IT students can continue to use in the future.