Consumers and businesses around the world have demonstrated their eagerness for innovative services. They are using cloud computing for everyday applications, playing online games, streaming high-definition content, and driving connected cars. While a willing market is a good thing, service providers must have the capability to accommodate steadily increasing bandwidth and unpredictable traffic on their networks. These pressures call for network modernization. How can providers pull this off? This ebook helps answer that question by exploring the challenges and barriers that often stifle modernization, and outlines a well-proven methodology for complex network transformation projects.