The tutorial that Stephan refers to is an excellent place to start for today. Currently, such an interface is available for LabVIEW and Simulink, which is called the Simulation Interface Toolkit. Since this interface is available for a product that NI does not own (namely, Simulink), it is a good assumption to think that we would create such a product for software that we do own (MATRIXx).
This product, much like the existing Simulation Interface Toolkit, will allow MATRIXx users to not only link a LabVIEW-based UI to their SystemBuild models, but also provide a means for targeting LabVIEW and LabVIEW Real-Time through AutoCode for quick deployment for hardware-in-the-loop and rapid control prototyping tests.
Great question!
Greg Wempe