The first step for any web service design is to start with strict adherence to SOA characteristics and principles. Basic building blocks and stepping stones for any web service design are the SOA architecture patterns.

SOA is the most favorable and proven architectural design style that helps to solve a few key problems within modern software systems to handle ever-changing user expectations efficiently.

Recently, in many real-time cloud applications, SOA has become the foundation of cloud efforts, and a lot of convergence with the private and public cloud as well. Certainly, SOA is playing a significant role in the background with virtualization, event processing, business process management, and much more in real-world applications.