Gerardo Pardo

DDS and its Relation to Unmanned Vehicle Interoperability

Date: 
June, 2011

DDS is increasingly beiong adopted as the middleware and data-model of choice for vehicle integration and interoperability. Testament to that are the recent directives from the UK MOD (Def Stan 23-03) that standardize on DDS for the Land Data Model and the messaging integration, as well as the US OSD Unmanned Control Segment (UCS) architecture that also directs the use of DDS for Unmanned Vehicle integration.

Tools and techniques for monitoring real-time distributed applications

Date: 
July, 2010

 

Monitoring a real-time distributed system for fault detection and identification is an extremely challenging problem. Faults may manifest themselves at a different node than where the actual error occurred, and may also be dependent on a particular sequencing of events and thus not easily reproducible. In addition the fault may be the loss of connectivity to some segment of the system, rendering a monitoring agent running in one segment of the system unable to communicate with other segments.

Securing access to Distributed Pub-Sub Information in a System-of-Systems

Date: 
July, 2010

Classical approaches to distributed system security often rely on single-purpose entities to authenticate clients, enforce access and security policy, or at least distribute authentication tokens.  While these models are reasonable for controlling access to a centralized resource (such as a database), they are not suitable for highly-distributed and dynamic systems where fielded nodes with intermittent connectivity require access to real-time data.

DDS Security Extensions RFP Proposal

Date: 
July, 2010

Proposed RFP to add standard interoperable mechanisms to communicate data securely using DDS. The proposed standard would add several new capabilities to DDS:

OMG Architecture Board Endorses Extensible Topics for DDS specification

Jacksonville, FL. Yesterday the OMG Architecture Board endorsed the new "Extensible Topics for DDS" Specification, a joint submission of Real-Time Innovations (RTI) and PrismTech. This specification adds several important capabilities to the DDS standard:

DDS Interoperability Demo: RTI, Prismtech, TwinOaks

Date: 
July, 2009

Three vendors: RTI, PrismTech, and TwinOaks Computing performed a live interoperability demo between their respective products.

The demo showcased 7 scenarios:

  • Basic interoperability
  • QoS Matching
  • Quality of Service: DURABILITY
  • Time Based Filters
  • Quality of Service: RELIABILITY
  • Intermittent Connectivity
  • Multiple Topics, Keys & Content Filters

And demonstrated interoperability for:

Using SELinux to secure DDS applications: Proper configurations and Lessons Learned

Date: 
July, 2009

hen DDS is used in complex distributed systems-of-systems, numerous security concerns may arise. These include ensuring availability of the system, resistance of the system to un-trusted network traffic, and confidentiality of sensitive data. As systems are increasingly interconnected, it is crucial that security concerns be considered early in the design process.

Leveraging DDS-RTPS Wire Interoperability Protocol: Towards a canonical tool-set for run-time interaction with the Global Data Space

Date: 
July, 2009

This presentation exposes recent research in DDS Global-Data Space tools that leverage standard display models such as Microsoft Excel’s; it also explores the different categories of DDS run-time tools drawing requirements and specific examples from COTS tools commonly used to interact with data.

Accessing real-time DDS data from web-based clients redux: The WS-DDS Service

Date: 
July, 2009

The Data-Distribution Service (DDS) is a widely used standard for distributing real-time publish-subscribe in performance and QoS-sensitive systems such as Combat Management Systems, Air Traffic Management and SCADA systems. As a consequence a lot of the “tactical” and “real-time” data in these systems “lives” in the DDS Global Data Space.

Deploying DDS on a WAN and the GIG: The DDS Router

Date: 
July, 2009

This presentation introduces new research perform by RTI in collaboration with the University of Granada, Spain towards the development of a DDS-Router service that could be used to solve DDS's WAN deployment issues.

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