In order to connect to diverse systems you must define imports and exports. This section explains the concepts.
An export allows WebSphere® Enterprise Service Bus (ESB), or WebSphere Process Server, to expose a service: so the service can be called by a service requester. An import allows WebSphere ESB, or WebSphere Process Server, to call a service.
You can use WebSphere Integration Developer to create service component architecture (SCA) modules that you deploy to WebSphere ESB or WebSphere Process Server. You define what exports the SCA modules have: that is, how service providers can call the SCA modules; and what imports the SCA modules have: that is, what service providers the SCA modules can call. Both imports and exports have bindings that define the communication mechanism; for example, Web services bindings (SOAP/HTTP or SOAP/JMS).
Both WebSphere ESB and WebSphere Process Server support a special type of SCA module, called a mediation module, that helps you connect to diverse systems.
If you want to integrate enterprise information systems (EIS), you generally use messaging bindings (JMS, generic JMS, MQ and MQ JMS) or EIS bindings. EIS exports and imports are created with a particular resource adapter, and let you interact with many EIS systems.