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...ous, event-based publish/subscribe services [1]. Some widely used real-time publish/subscribe services for DRE systems based on object-oriented middleware include CORBA Real-time Event Service (RTES) =-=[2]-=-, CORBA Real-time Notification Service (RTNS) [3] and OMG’s Data Distribution Service (DDS) [4]. Recent trends ∗ This work was sponsored in part by grants from NSF ITR CCR0312859, Siemens, and DARPA/A...

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... ITR CCR0312859, Siemens, and DARPA/AFRL contract #F33615-03-C-4112 † Work done by the author while at Vanderbilt University indicate that QoS-enabled component middleware, such as CIAO [5] and PRiSM =-=[6]-=-, are increasingly used to develop and deploy next-generation DRE systems. The increasing use of QoS-enabled component middleware in DRE systems compounded by the need for real-time publish/subscribe ...

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...rants from NSF ITR CCR0312859, Siemens, and DARPA/AFRL contract #F33615-03-C-4112 † Work done by the author while at Vanderbilt University indicate that QoS-enabled component middleware, such as CIAO =-=[5]-=- and PRiSM [6], are increasingly used to develop and deploy next-generation DRE systems. The increasing use of QoS-enabled component middleware in DRE systems compounded by the need for real-time publ...

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...ervice configuration. This decoupling enables real-time publish/subscribe service configurations and specifications to be validated and synthesized via high-level model driven engineering (MDE) tools =-=[8]-=- prior to system deployment time, which increases the level of abstraction and automation of the DRE system development process. This separation of concerns maximizes the flexibility and reusability o...

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...Some widely used real-time publish/subscribe services for DRE systems based on object-oriented middleware include CORBA Real-time Event Service (RTES) [2], CORBA Real-time Notification Service (RTNS) =-=[3]-=- and OMG’s Data Distribution Service (DDS) [4]. Recent trends ∗ This work was sponsored in part by grants from NSF ITR CCR0312859, Siemens, and DARPA/AFRL contract #F33615-03-C-4112 † Work done by the...

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... middleware. We choose RTES as a vehicle to evaluate our design because it is a mature real-time publish/subscribe implementation based on real-time CORBA and has been widely used in many DRE systems =-=[10]-=-. All our benchmarks were conducted on ISISlab (www.isislab.vanderbilt.edu). ISISlab consists of 6 Cisco 3750G-24TS switches, 1 Cisco 3750G-48TS Proceedings of the 10th IEEE International Symposium on...

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...nd efficiently due to the complexity of CCM container architecture and its programming model. There are a number of design challenges that arise when pursuing this design choice descried in detail in =-=[9]-=-. 2.3. Component Server-Managed Publish/Subscribe Services Design: The third alternative architecture for providing real-time publish/subscribe services in component middleware is to host them within ...

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...A RTES implementation and CIAO’s container-managed RTES implementation, due in large part to the Handle/Body idiom used to optimize the processing of CORBA Any data types in TAO’s RTES implementation =-=[11]-=-, which is inherited by CIAO RTES. This idiom presents multiple logical copies of the same data while sharing the same physical copy. Proceedings of the 10th IEEE International Symposium on Object and...