Data Distribution Service: Difference between revisions

Revision as of 11:49, 24 June 2020

Revision as of 21:30, 8 July 2020

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{{Advert|date=July 2020}}{{third-party|date=July 2014}}

The '''Data Distribution Service''' ('''DDS''') for real-time systems is an [[Object Management Group]] (OMG) [[machine-to-machine]] (sometimes called [[middleware]] or connectivity framework) standard that aims to enable [[Safety-critical|dependable]], [[Many-task computing|high-performance]], [[interoperable]], [[Real-time computing|real-time]], [[Scalability|scalable]] [[data exchange]]s using a [[publish–subscribe pattern]].

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DDS is a networking [[middleware]] that simplifies complex [[computer network programming|network programming]]. It implements a [[publish–subscribe pattern]] for sending and receiving data, events, and commands among the [[node (networking)|node]]s. Nodes that produce information (publishers) create "topics" (e.g., temperature, ___location, pressure) and publish "samples". DDS delivers the samples to subscribers that declare an interest in that topic.

DDS handles transfer chores: message addressing, [[serialization|data marshalling and demarshallingde-marshalling]] (so subscribers can be on different platforms from the publisher), delivery, flow control, retries, etc. Any node can be a publisher, subscriber, or both simultaneously.

The DDS publish-subscribe model virtually eliminates complex network programming for distributed applications. {{citation needed|date=October 2019}}