O'Brien's "Introduction to Information Systems", 12/E, reflects the movement toward enterprise-wide business applications. All new real world case studies correspond with this movement as well. The text's focus is on teaching the general business manager how to use and manage the most current IT technologies like the Internet, Intranets, and Extranets for electronic commerce and enterprise collaboration, and how IT contributes to competitive advantage, reengineering business processes, and decision - making.