Last month, the href="http://www.omg.org/">Object Management Group

(OMG) held a technical meeting, sponsored in part by

RTI, in Jacksonville, Florida. There were a lot of important

developments, and I'd like to give you a short

recap:

• Perhaps the most important

  milestone for DDS followers was the recommendation for adoption

  of the new specification Extensible and Dynamic Topic

  Types for DDS (sometimes abbreviated

  "DDS-XTypes"). href="http://blogs.rti.com/2009/09/01/omg-dds-extensible-and-dynamic-types/">I

  wrote about DDS-XTypes late last year; it will make it

  much easier for DDS users to upgrade and evolve their systems

  over time. It will also enable whole new categories of

  plug-and-play tools and integration components - such

  as href="http://www.rti.com/products/dds/RTIReal-TimeConnect.html">database

  connectors, href="http://www.rti.com/products/dds/rtirecorder.html">recorders,

  and href="http://www.rti.com/products/dds/routing-service.html">bridging/routing

  services - to be developed in a way

  that's portable and interoperable across DDS

  implementations, increasing the size and diversity of the DDS

  marketplace and increasing competition. RTI was a lead author of

  this specification, and a number of the capabilities defined in

  it are available in pre-standard form in href="http://www.rti.com/products/dds/index.html">RTI Data

  Distribution Service today.

• The

  meeting also saw the presentation of three initial submissions,

  representing six different companies, to the href="http://www.omg.org/techprocess/meetings/schedule/Web-enabled_DDS_RFP.html">Web-Enabled

  DDS RFP that was released last year. (The previous link

  is only accessible to OMG members; sorry. When it's

  finished, the specification will be publicly available.) This

  very strategic initiative will produce a specification for the

  integration of systems based on DDS with those based on web

  technologies. For the first time, it will be possible for SOAP-

  or REST-based client applications to consume data flowing along a

  DDS data plane, and for them to provide services back to

  applications in that plane, in a standards-based way with COTS

  technology. RTI is currently developing an implementation of this

  technology in parallel with the standard; this component, called

  RTI Web Integration Service, will be included in the href="http://www.rti.com/products/dds/editions.html">Professional

  and Elite Editions of RTI Data Distribution Service.

  You can see a href="http://www.youtube.com/user/RealTimeInnovations#p/u/2/CUE3G6eEalw">video

  demo of DDS-web integration, based on a pre-release

  version of this component, on YouTube.

• Work

  continues on further improving the portability and usability of

  DDS implementations with updated C++ and Java API bindings. The

  href="http://www.omg.org/techprocess/meetings/schedule/Native_C++_Language_DDS_PSM_RFP.html">improved

  C++ APIs are already in the revised submission stage,

  and we expect them to be adopted within the next small number of

  OMG meetings. The href="http://www.omg.org/techprocess/meetings/schedule/Java_5_Language_PSM_for_DDS_RFP.html">improved

  Java APIs will be presented as initial submissions at

  the next OMG meeting, to be held in Minneapolis in June.

  RTI's initial proposal will be based on the href="http://code.google.com/p/datadistrib4j/">DataDistrib4J

  APIs, which we have made available in open source.

• Finally, the group had a lively discussion of DDS

  security, especially with respect to data tagging and labeling.

  We expect to take these discussions to a formal RFP in the coming

  months.

I think it's a

testament to the strength of the DDS ecosystem that while its

core standards remain stable and support href="http://www.rti.com/industries/">significant real-world

deployments, at the same time the depth and breadth of

that ecosystem continues to grow. It's an exciting time

to be involved with this technology.

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