The OMG Data-Distribution Service for Real-Time Systems (DDS) is the first open international middleware standard directly addressing publish-subscribe communications for real-time and embedded systems.

DDS introduces a virtual Global Data Space where applications can share information by simply reading and writing data-objects addressed by means of an application-defined name (Topic) and a key. DDS features fine and extensive control of QoS parameters, including reliability, bandwidth, delivery deadlines, and resource limits. DDS also supports the construction of local object models on top of the Global Data Space.

The DDS portal is maintained by the OMG Data Distribution SIG (DDSIG). For the activities of the DDSIG and other events of interest to the community, please visit the EventCalendar and the DDSIG page. The portal uses a Wiki to manage the content. For information on using the portal, including how to add new content please visit the help page.

Learning about DDS

The TutorialsPage contains presentations on DDS. More material can also be found in the WhitepapersPage. All material can be accessed from the and the documents page.

The Information Days contains use-case and vendor presentations. These events started in 2006 and are still on-going.

The current DDS specification is version 1.2 and the current DDS Interoperability Wire Protocol specification (DDS-RTPS) is version 2.1 All DDS-related specifications, including earlier versions, can be found in the specifications page.

Visit the links or the ProjectsPage learn about vendors, products and projects that support or use DDS.