RTI Data Distribution Service

RTI Data Distribution Service

  • SUPPORT DIFFERENT TYPES OF PROTOCOLS
  • REAL-TIME DISTRIBUTED APPLICATION
  • FRIENDLY UI
Overview

RTI Connext DDS Professional comprises a connectivity framework and supporting tools for the IIoT. It distributes real-time data and messages across a system, from devices at the edge, to control applications in the fog, to analytics in the cloud. It provides facilities to accelerate the development of new, interoperable software components as well as the integration of existing and third-party assets.

Connext DDS Professional complies with the Object Management Group (OMG) Data Distribution Service (DDS). DDS is the only connectivity standard designed to support the demanding Quality of Service (QoS) requirements of autonomous cyber-physical systems.

DDS provides a highly scalable integration paradigm. It specifies a software databus — a data-centric framework for distributing and managing real-time data. DDS applications communicate by simply publishing the data they produce and subscribing to the data they consume. Applications need no knowledge of each other; the databus automatically discovers and routes data between matching publishers and subscribers.

 

DDS: An Open Standard for Real-Time Applications

RTI Connext DDS software includes the world's leading implementation of the Object Management Group (OMG) Data Distribution Service (DDS) standard. DDS is the only open standard for messaging that supports the unique needs of both enterprise and real-time systems. Its open interfaces and advanced integration capabilities slash costs across a system's lifecycle, from initial development and integration through ongoing maintenance and upgrades.


Open Interfaces

 

DDS fosters the development of loosely coupled, modular and open architecture systems. By supporting well-defined interfaces between components and subsystems, DDS eradicates stovepipe, closed and proprietary architectures. This eliminates complexity to reduce integration, maintenance and upgrade costs; promotes competition at the subsystem and middleware levels; and eases reuse.

  • Portability – DDS was designed from the start to support any programming language. It is the only standard messaging API for C and C++; it also supports Java, C#, Ada, JMS, WSDL/SOAP and REST/HTTP interfaces.
  • Wire interoperability – The DDS Real-Time Publish-Subscribe (RTPS) wire protocol provides seamless interoperability across implementations, platforms and programming languages.
  • Semantic interoperability – Applications communicate by exchanging discoverable data objects typically described by a standard data model. The data model can be specified using the OMG Interface Definition Language (IDL), XSD/WSDL, XML or a programmatic interface. It can also be generated from a Unified Modeling Language (UML) model.
  • Many implementations – At least 10 unique middleware implementations support the DDS API or wire protocol.
 


Advanced Integration Capabilities

 

DDS standardizes powerful messaging semantics that reduce development and integration costs while improving system scalability and robustness.

  • Data-centricity – Data-centric publish/subscribe messaging provides loose coupling, reduces application and integration logic, and scales to systems of systems.
  • Performance – DDS supports the full range of performance requirements from enterprise to high-performance real-time systems. DDS implementations outperform implementation of other standards by up to 3,000x. Connext DDS consistently outperforms other DDS solutions.
  • QoS – DDS defines a comprehensive set of Quality of Service (QoS) policies. These provide control over dynamic discovery, content-aware routing and filtering, fault tolerance and deterministic real-time behavior.
 


Open Standardization Process

 

DDS is a truly open standard. The OMG is one of the largest computer industry consortiums with hundreds of member organizations including IBM, Microsoft, Oracle, Red Hat and Tibco. In addition to DDS, OMG manages the Unified Modeling Language (UML) and other popular software standards. Any organization can join and participate in the OMG standardization process. Adopted standards are freely available on the OMG web site.



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