OpenSplice DDS is an extreme-performance, real-time, data-centric publish/subscribe middleware platform. It features an advanced real-time networking technology that ensures that the right data is delivered at the right place, at the right time, all the time. This is guaranteed by providing a priority-preserving transport, built over UDP/IP, capable of scheduling information flows based on their urgency and importance. The various properties of data flows are tuned by means of a rich set of QoS, providing control over data distribution reliability, availability, timeliness, etc. OpenSplice DDS provides a full implementation of the OMG DDS v1.2 standard, implementing the data-centric publish-subscribe layer as well as the productivity-boosting Object Reconstruction Layer. OpenSplice DDS is equipped with high productivity MDE PowerTools, provides seamless integration with DBMS and CORBA, and comes with a security add-on for information assurance.

RTI Data Distribution Service (formerly NDDS) is networking middleware that implements a real-time publish-subscribe communications model and allows distributed processes to share data without concern for the actual physical location or architecture of their peers. It includes support for best-effort and reliable communications (including reliable multicast), as well as client-server communications. RTI Data Distribution Service is an open-architecture, data-critical platform based on the Object Management Group's (OMG) Data Distribution Service for Real-Time Systems (DDS). The OMG is the same group that manages the CORBA and UML standards. OMG recognized the need to augment CORBA with a data-centric publish-subscribe specification. The DDS standard answers that need, and RTI is a primary author of the new specification. RTI Data Distribution Service is field-proven middleware that is currently used in a wide variety of time-critical applications.