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→History: Two more OMG specification´s were added DDS - XRCE and DDS - RPC |
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A [[Unified Modeling Language]] (UML) profile specified DDS domains and topics to be part of analysis and design modeling.<ref>UML Profile for Data Distribution, version: 1.0, http://www.omg.org/cgi-bin/doc?ptc/10-05-17.pdf </ref> This specification also defined how to publish and subscribe objects without first describing the types in another language, such as XML or OMG IDL.<ref>DDS-Java: Java 5 Language PSM for DDSVersion 1.0, ptc/2012-12-01, March 2013 http://www.omg.org/spec/DDS-Java/1.0/Beta3/PDF</ref>
An [[interface definition language]] (IDL) was specified in 2014 independently from the [[Common Object Request Broker Architecture]] (CORBA) specification chapter 3. This IDL 3.5 was compatible with the CORBA 3 specification, but extracted as its own specification allowing it to evolve independently from CORBA.<ref>{{Cite web |title= Interface Definition Language (IDL), Version 3.5 |date= March 1, 2014 |publisher= OMG |url= http://www.omg.org/spec/IDL35/3.5/ |access-date= November 9, 2016 |archive-url= https://web.archive.org/web/20170121033326/http://www.omg.org/spec/IDL35/3.5/ |archive-date= January 21, 2017 |url-status= dead }}</ref>
Other protocols to be mentioned are: DDS-XRCE (DDS for eXtremely Resource Constrained Environments), this specification protocol allows the communication between devices of limited resources, like microcontroller for example and a DDS network. It makes publishing and subscribing to topics via an intermediate service in a DDS ___domain possible <ref>{{Cite web|title=About the DDS For Extremely Resource Constrained Environments Specification Version 1.0|url=https://www.omg.org/spec/DDS-XRCE|access-date=2021-03-12|website=www.omg.org}}</ref> and DDS-RPC (RPC Over DDS) which defines Remote Procedure Calls. These provide a bidirectional request/reply communication and determine distributed services, and are detailed using a service interface. It also supports both synchronous and asynchronous method invocation. This polivalent characteristic was contributed by eProsima, a DDS middleware SME company which proceeded with the development of DDS XRCE and DDS RPC.<ref>{{Cite web|title=About the RPC Over DDS Specification Version 1.0|url=https://www.omg.org/spec/DDS-RPC/1.0|access-date=2021-03-12|website=www.omg.org}}</ref>
Starting with DDS version 1.4 in 2015, the optional DLRL layer was moved to a separate specification.<ref>{{Cite web |title= DDS Data Local Reconstruction Layer (DDS-DLRL) |date= April 2015 |url= http://www.omg.org/spec/DDS-DLRL/ |access-date= November 9, 2016 }}</ref>
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