Invoking EAI Dispatch Service

I'm in a design stage for a project with requirements to process Inbound requests from an external application and send a response.  The requests would adhere to a standardized XML schema (see uploaded attachments). Once I imported it, multiple Integration Objects were created.  One to create a ticket (RequestTroubleReportCreationRequest) and provide a response (RequestTroubleReportCreationResponse), another one to update a ticket (ModifyAttributesRequest, ModifyAttributesResponse), etc.. As a result of this, I would be creating multiple Data Maps for those integration objects.  I'm planning on determining which data map to call using EAI Dispatcher and then proceed to call a WF process with the Data Map name