QoS-UniFrame: A Petri Net-based Modeling Approach to Assure QoS Requirements of Distributed Real-time and Embedded Systems
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Authors
Liu, Shih-hsu
Bryant, Barrett R.
Gray, Jeffrey G.
Raje, Rajeev R.
Olson, Andrew M.
Auguston, Mikhail
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Date of Issue
2005
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Abstract
Assuring quality of service (QoS) requirements is critical
when assembling a distributed real-time and embedded
(DRE) system from a repository of existing components.
This paper presents a two-level approach for assuring satisfaction
of QoS requirements in the context of a reduced
design space for DRE systems. A dynamic and parallel
approach is introduced to prune off the infeasible design
spaces at the first level. Evolutionary algorithms cooperating
with a domain-specific scripting language then discard
less probable design spaces using statistics. These techniques
fulfill the collective objectives of pruning and assuring
the design space at system assembly time. The result
may lead to lessen the overhead of validation of QoS requirements
at runtime, and reduce the development and integration
cost of DRE systems.
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Article
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Computer Science (CS)
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This research was supported in part by U. S. Office of Naval Research award N00014-01-1-0746.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.