Chapter 2. Evolution of the Service Concept

Before looking at the road ahead, we want to take a step back and look at the evolution of the service concept by examining the milestones of enterprise computing and how they have shaped the concept of "services." We will look at three core development directions: programming languages, distribution technology, and business computing. Each has undergone a major evolution in the past 40 years, leading to a level of abstraction that supported the emergence of Service-Oriented Architectures.