Service Oriented Architecture

Service Oriented Architecture (SOA) is an evolution of the fundamentals governing a component based development. Component based development gives an opportunity for greater code redefine than what is possible with Object Oriented (OO) development.

Reuse SOA:

SOA gives even greater code reuse by utilizing component based development, OO development and also by organizing and identifying well-defined and non-repeatable program services into a hierarchy of composite services. You can create a new application from a existing service. E.g: you can create use of Google's search service and eBay's services with the service you intend to give.