Glossary

The glossary includes definitions for terms which are commonly used here, and that are part of the DDS and RTI lexicon.

QoS (Quality of Service) in DDS (Data Distribution Service) are a set of configurable parameters that control the behavior of a DDS system, such as resource consumption, fault tolerance, and communication reliability. Each entity (Topic, DataReader, DataWriter, Publisher, Subscriber, and
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Introduction We come up with system requirements so that we can specify what we want our system to be. Among other things, this allows us to communicate what we want the system to do and how it should operate so that when someone goes to the design and architecture phase, they have a place to start
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A sample is a single data update received over DDS. "I received a sample of Track Data."
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A Topic is the most basic description of data to be published or subscribed to. Each Topic describes a data stream in your system. A Topic is identified by its name, which is a string that must be unique in the whole Domain.
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Topic Queries introduce another way for DDS developers to intelligently access data within their systems. This is a new feature introduced in Connext 5.3 that complements Content Filtered Topics and the Durability Qos policy. Content filtered topics (CFTs) allow a DataReader to subscribe to a
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This generally refers to a lower-layer mechanism for transmitting data. Typically a transport is a type of network communication layer that RTI Connext DDS sends data on top of, but this could also be shared memory or another type of bus. Transports may also be stackable - so a transport may not be
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