Besides providing all new real world cases, the Twelfth Edition includes significant changes to the Eleventh Edition's content which update and improve its coverage, many of them suggested by an extensive faculty review process. Highlights of the key changes in this edition include:

• Chapter 1 now starts with an introduction to the fundamental roles of information systems in business and an overview of the managerial challenges of IT in Section I. The more conceptual material on the components of information systems is then covered in Section II.
• Introductory coverage of competitive advantage issues in Chapter 2 has been further simplified at the urging of reviewers by removing several topics previously covered, including Internet value chains, e-business/e-commerce strategy development, and total quality management.
• Chapter 4 on Computer Software has been strengthened with new material on business application software, application service providers, XML and Java, and Web services.
• Chapter 5 on Data Resource Management has been restructured to improve its sequence of topics, and improved with the addition of material on database software and traditional file processing, which has returned at the urging of reviewers to contrast it with the modern database management approach.
• Coverage of customer relationship management, enterprise resource planning, and supply chain management has been significantly expanded in Section I of Chapter 7 on Electronic Business Systems, emphasizing their role in essential business processes and the challenges they pose as well as the benefits they can provide to a business. Coverage of functional business systems in Section II has been streamlined to emphasize a few key examples in each functional area of business.
• The content of Section I of Chapter 12 on Enterprise and Global Management of Information Technology has been revised to focus primarily on the management of information technology by expanding coverage of topics on the key management processes and challenges involved, and by moving some of the conceptual material on the impact of IT on managers and organizations to other chapters.
• All other chapters have been updated with new text material, and most in-text real world examples that illustrate topics throughout the text have been replaced with more current examples. In addition, most of the photos and software screen shots in the text have been replaced with updated content.