WID : WebSphere Integration Developer(WID) is a business integration product from IBM. It enables user to create business processes that integrate applications and data.

Business Process : A business process is a defined set of business activities that represent the steps required to achieve a business objective.

A business process consists of two main parts:

    * Interface file
    * Business process file

When you create a business process through WID, you can choose to have a default Web Services Description Language (WSDL) interface file. Or you can choose to use an existing WSDL file.

The WSDL interface file exposes the functionality of the business process and enables clients to interact with the process.

In WebSphere Integration Developer, business processes are automatically defined using the Business Process Execution Language (BPEL) specification,which is an open standard that is compatible with the WSDL specification.