The document discusses the evolution of business networks through 5 phases of information technology: (1) individual business functions in the 1970s, (2) applying new methods to functional areas in the 1980s, (3) development of ERP systems in the 1990s, (4) 1:1 EDI relationships in the 1990s, and (5) complex m:n business networking involving advanced technologies from 1990-2005. It then presents a model for business networks that involves chosen suppliers, an enterprise network, innovation partners, and customers connected through supply chain management and relationship management infrastructure. Finally, it concludes that successful business networking requires integration of resources like IT as well as coordination of organizational dependencies through process management.