Information Systems, 4/E, emphasizes the essential role of information systems in the works systems through which today's businesses operate. Understanding information systems from a business perspective is essential for understanding e-commerce and e-business.

• Stephen Alter takes a systems approach to teaching Information Systems.

  • Allows students to apply their experience in business to the IT/IS function.

• NEW - E-business is emphasized throughout the text-Chapter 1 defines e-business, the trends that support it and obstacles that undermine it.

  • Helps students recognize the essential role of information systems in e-commerce and e-business.

• NEW - Improved framework for summarizing any computer-enabled system-This emphasizes alignment between business process, people, technology, and other elements.

  • Encourages students to see information technology as part of a work system.

• NEW - Improved method for analyzing a system from a business professional's viewpoint-Chapter 2 presents an improved systems analysis approach based on principles that apply in any business situation.

  • Enables students to understand and apply the concepts to real-world situations.

• NEW - E-business Security and Control-Chapter 13 provides current examples along with expanded coverage of e-business security and control.

  • Helps students understand the importance of security and control.

• NEW - Chapter 12 starts with a new example about building an online store-Demonstrates the similarities between building and maintaining an e-commerce site and any important information system.

  • Shows students the importance of selecting an appropriate method for building a system.