English

DTIC ADA433157: OMG Data-Distribution Service (DDS): Architectural Overview

The OMG Data-Distribution Service (DDS) is a new specification for publish-subscribe data-distribution systems. The purpose of the specification is to provide a common application-level interface that clearly defines the data-distribution service. The specification describes the service using UML, providing a platform-independent model that can then be mapped into a variety of concrete platforms and programming languages. This paper introduces the OMG DDS specification, describes the main aspects of the model, compares it with related technologies, and gives examples of the communication scenarios it supports. This paper and presentation will clearly explain the important differences between data-centric publish-subscribe and object-centric client-server (e.g. CORBA) communications, along with the applicability of each for real-time systems. The OMG DDS attempts to unify the common practice of several existing implementations enumerating and providing formal definitions for the Quality of Service (QoS) settings that can be used to configure the service. Publish-subscribe networking is a key component of the Navy Open Systems Architecture (Navy OA) initiative. This talk will also hi

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