An approach to service provisioning of HLA RTI as Web services

HLA based simulations on WAN/Internet usually face firewall issues; Meanwhile, Web service has better programming interoperability on WAN/Internet. Therefore service provisioning of HLA RTI as Web services is a promising solution. The author presents an approach to service provisioning of HLA RTI as Web services. This approach defines a new component as an extension to existing RTIs, called the RTI Web service provider. It comprises two kinds of Web services- RTI factory service and RTI service. The RTI Factory service is responsible for creating RTI service instances for federates on client, and the RTI service as a stateful Web service provides RTI functionality for federates through underlying proxy federates. Application in a visual simulation for tactical training demonstrates that the approach can enable the interoperability of federates on the Internet