Abstract
SUMMARYMany real‐time systems use preemptive priority‐based scheduling in their internals to guarantee certain real‐time performance. This includes technologies that range from The Real‐Time Specification for Java (RTSJ) to middleware like Real‐Time Common Object Request Broker Architecture (RT‐CORBA), which offers additional models and policies that blend client and server information. This decision eases the integration of real‐time admission tests and dispatching policies in these types of infrastructures. In this paper, we analyze different trade‐offs that emerge from the definition of different propagation models for distributed real‐time Java. The paper covers technological integration aspects as impact on interfaces and other practical issues mainly related to the performance that this model offers to a real‐time application and non‐functional overhead. The contribution described in the paper may help in the development of The Distributed Specification for Java (DRTSJ). Copyright © 2011 John Wiley & Sons, Ltd.
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