Pure dynamic invocation invokes a service without needing an import in the mediation module.
You can use WebSphere® Integration Developer to create a mediation module that selects the target service dynamically at runtime. The possible target services may use different protocols, different formats, or different quality-of-service values. The problem is that some or all the possible combinations are not known at the time the module is developed. Similarly, during initial development and deployment of the mediation module, the set of possible targets is known, but over time additional endpoints are added.
Using pure dynamic invocation, a mediation module invoke service endpoints that were not known when the module was developed and deployed. Service endpoint information can be stored in any easily accessed form, such as WSRR or a database. The endpoints can optionally include metadata that describes how the service is to be invoked. This means that the mediation module can retrieve all the information necessary to invoke the service endpoint.