It is possible to send CAD Document Structures to other systems using the Windchill Gateway Architecture along with the Windchill ESI framework. This functionality works in a similar manner as Windchill ESI functionality.

You can associate a Distribution Target to a CAD Document and then the CAD Document can be published to the Distribution Target. The initial publishing of a CAD document structure to a Distribution Target will send the entire structural information. The subsequent publishing of the same CAD document structure that is initiated due to changes in the structure will send only the delta information. The delta will have only the changed information since the last time it was published to the same Distribution Target.