Enterprise Application Integration is becoming the most challenging task of the IT Organizations to offer increased functionality and software reuse. Traditionally we used to talk about integration of either IT applications or Business processes but Enterprise Application Integration is an emerging research field that deals with integrating IT applications with Business processes. To help the organizations to achieve this is to find better ways to reconfigure their business processes using a common middleware.
Middleware provides services required to connect applications together such as concurrency, transaction management, threading and messaging. Middleware in the context of distributed applications is software that provides services beyond those provided by the operating system to enable the various components of a distributed system to communicate and manage data. Middleware supports and simplifies complex distributed applications. It includes web servers, application servers, messaging and similar tools that support application development and delivery. Middleware is especially integral to modern information technology based on XML, SOAP, Web services, and service-oriented architecture.