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

Interoperability is the ability of systems, units, or forces to provide services to and accept services from other systems, units, or forces, and to use those services so exchanged to enable them to operate effectively together. See also: Interoperation (systems) Additional Information on this
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Interoperation is the setup of components (e.g. applications, hardware, systems, etc.) and methods such that the components combine and work together as one system. Interoperating Systems. If systems are interoperating, they are working together as a coordinated and functioning whole.
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A key field is member field of your data type that represents part of a unique identifier of your data - much like a primary key in a database. All key fields combined are called a key, and should form a unique identifier of an element (called an instance ) within your Topic. One example of a key
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A locator is a combination of a transport kind, address and port number. Sometimes in string format, sometimes specified in a DDS_Locator_t structure. Examples: ( DDS_LOCATOR_KIND_UDPv4 ,, 7400) or "udpv4://"
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Middleware is a software layer between an application and the operating system. Network middleware isolates the application from the details of the underlying computer architecture, operating system and network stack (see Figure 1 ). Network middleware simplifies the development of distributed
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Point-to-point is the simplest model of communication , as illustrated in Figure 1; it is a model of one-to-one communications. The telephone is an example of an everyday point-to-point communications device. To use a telephone, you must know the address (phone number) of the other party. Once a
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Publish-Subscribe . In the publish-subscribe communications model (Figure 1), computer applications (nodes) “subscribe” to data they need and “publish” data they want to share. Messages pass directly between the publisher and the subscribers, rather than moving into and out of a centralized server
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