This volume first provides a framework for the analysis and design of business models and then presents a number of case studies that apply the framework. All four case studies focus on the development of technology-enabled platforms. The Uber case study shows the evolution of transportation business models from physical products to service platforms. The OpenTable case study examines the development of a platform to support restaurant booking. The iPhone case study looks at the development of the iPhone and the smartphone platform wars that ensued. The HealthTap case study examines a platform that aims to coordinate the health care value chain. A Companion volume, Electronic Business Case Collection, focuses on the effects of mobility and cloud computing on the business models of technology and media companies.