DDS, the Data Distribution Service, is an Object Management Group standard for a publish-subscribe middleware that distributes real-time data between distributed system components.
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- DDS provides a data-centric publish-subscribe model in which applications publish and subscribe to named topics. It offers configurable quality of service controls for reliability, durability, and timing, suited to real-time and embedded systems.
- DDS is used in robotics, aerospace, defence, and industrial control. ROS 2 adopts DDS as its default communication middleware, building its messaging layer on top of the standard.