The design and performance of a real-time CORBA event service
Proceedings of the 12th ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications
Replica Determinism and Flexible Scheduling in Hard Real-Time Dependable Systems
IEEE Transactions on Computers
Applying Patterns to Improve the Performance of Fault Tolerant CORBA
HiPC '00 Proceedings of the 7th International Conference on High Performance Computing
Is it an Agent, or Just a Program?: A Taxonomy for Autonomous Agents
ECAI '96 Proceedings of the Workshop on Intelligent Agents III, Agent Theories, Architectures, and Languages
DOORS: Towards High-Performance Fault Tolerant CORBA
DOA '00 Proceedings of the International Symposium on Distributed Objects and Applications
Experiences, Strategies, and Challenges in Building Fault-Tolerant CORBA Systems
IEEE Transactions on Computers
Towards Real-Time Fault-Tolerant CORBA Middleware
Cluster Computing
MEAD: support for Real-Time Fault-Tolerant CORBA: Research Articles
Concurrency and Computation: Practice & Experience - Foundations of Middleware Technologies
Designing Reliable Architecture for Stateful Fault Tolerance
PDCAT '06 Proceedings of the Seventh International Conference on Parallel and Distributed Computing, Applications and Technologies
Adaptive Failover for Real-Time Middleware with Passive Replication
RTAS '09 Proceedings of the 2009 15th IEEE Symposium on Real-Time and Embedded Technology and Applications
Middleware for Resource-Aware Deployment and Configuration of Fault-Tolerant Real-time Systems
RTAS '10 Proceedings of the 2010 16th IEEE Real-Time and Embedded Technology and Applications Symposium
The design of the TAO real-time object request broker
Computer Communications
An architecture for monitoring, visualization, and control of gigabit networks
IEEE Network: The Magazine of Global Internetworking
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The Intelligent Transportation Systems (ITS) is a state-of-the-art system, which maximizes mobility, safety, and usefulness through combining existing transport systems with information, communication, computer, and control technologies. Many governments have been building the ITS based on their own National ITS Architectures. The core functions of the ITS are collection, management, and provision of real time transport information, and it can be deployed based on the Common Object Request Broker Architecture (CORBA) of the Object Management Group (OMG) efficiently because it consists of many interconnected heterogeneous systems. Fault Tolerant CORBA (FT-CORBA) supports real time requirement of transport information stably through redundancy by replication of server objects. However, object replication, management, and related protocols of FT-CORBA require extra system CPU and memory resources, and can degrade the system performance both locally and as a whole. This paper proposes an improved architecture to reduce usage of CPU and memory and enhance reliability and ultimately predictability of FT-CORBA based ITS by generating and managing object replicas adaptively during system operation with an agent. The proposed architecture is expected to be applicable to other FT-CORBA based systems.