Architecting and Implementing Versatile Dependability

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Architecting and Implementing Versatile Dependability
Distributed applications must often consider and select the appropriate trade-offs among three important aspects ? fault-tolerance, performance and resources. We introduce a novel concept, called versatile dependability, that provides a framework for analyzing and reasoning about these trade-offs in dependable software architectures. We present the architecture of a middleware framework that implements versatile dependability by providing the appropriate "knobs" to tune and re-calibrate the trade-offs. Our framework can adjust the properties and the behavior of the system at development-time, at deployment-time, and throughout the application's life-cycle. This renders the versatile dependability approach useful both to applications that require static fault-tolerance configurations supporting the loss/addition of resources and changing workloads, as well as to applications that evolve in terms of their dependability requirements. Through a couple of specific examples, o...
Tudor Dumitras, Deepti Srivastava, Priya Narasimha
Added 09 Dec 2009
Updated 09 Dec 2009
Type Conference
Year 2004
Where ICSE
Authors Tudor Dumitras, Deepti Srivastava, Priya Narasimhan
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