Services in a Service Oriented Architecture

Anonymous Patron writes This post is the second in a series about the application of the Service Oriented Architecture (SOA) system design pattern to library services. The first post in this series focused on defining “Service Oriented Architecture” using the analogy of a transportation network. This post goes into some detail about what makes a “service” in this architecture and offers an example using a hypothetical use case: a union library catalog (Open WorldCat) making a statement about the availability of a book.”