Elements of a <a href="https://en.wikipedia.org/wiki/Service-oriented_architecture" class="extiw" title="en:Service-oriented architecture">Service Oriented Architecture</a>
<a href="//commons.wikimedia.org/wiki/User:SuperFLoh" title="User:SuperFLoh">Florian Lindner</a> (designer)
CC BY 2.5
Dirk Krafzig, Karl Banke, and Dirk Slama. Enterprise SOA. Prentice Hall, 2005