You can migrate applications and configuration data from certain IBM® products that existed before IBM Business Process Manager or IBM Integration Designer.
For migration from another product to IBM Business Process Manager (for example, WebSphere InterChange Server or WebSphere Business Integration Server Foundation for z/OS® to IBM Business Process Manager) , the migration steps include using migration tools to convert source artifacts to the new IBM Business Process Manager version of the artifacts.
WebSphere Integration Developer contains migration tools that assist in migrating existing application source artifacts to IBM Business Process Manager artifacts. These tools can be accessed through the File > Import.. wizards of WebSphere Integration Developer. The migration tools designed to assist with migration from WebSphere InterChange Server can also be accessed through the command line of IBM Business Process Manager.
You can also find articles that might help you with migration in the IBM developerWorks® "Technical Library" at http://www.ibm.com/developerworks.