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QoS Contract-Aware Reconfiguration of Component Architectures Using E-Graphs

Abstract : In this paper we focus on the formalization of component-based architecture self-reconfiguration as an action associated to quality-of-service (QoS) contracts violation. With this, we aim to develop on the vision of the component-based software engineering (CBSE) as a generator of software artifacts responsible for QoS contracts. This formalization, together with a definition of a QoS contract, forms the basis of the framework we propose to enable a system to preserve its QoS contracts. Our approach is built on a theory of extended graph (e-graph) rewriting as a formalism to represent QoS contracts, component-based architectural structures and architecture reconfiguration. We use a rule-based strategy for the extensible part of our framework. The reconfiguration rules are expressed as e-graph rewriting rules whose left and right hand sides can be used to encode design patterns for addressing QoS properties. These rules, given by a QoS property domain expert, are checked as safe, i.e., terminating and confluent, before its application by graph pattern-matching over the runtime representation of the system.
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https://hal.inria.fr/inria-00525438
Contributor : Gabriel Tamura <>
Submitted on : Monday, October 25, 2010 - 9:45:44 PM
Last modification on : Saturday, December 12, 2020 - 6:08:02 PM
Long-term archiving on: : Wednesday, January 26, 2011 - 2:39:30 AM

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  • HAL Id : inria-00525438, version 1

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Gabriel Tamura, Rubby Casallas, Anthony Cleve, Laurence Duchien. QoS Contract-Aware Reconfiguration of Component Architectures Using E-Graphs. 7th International Workshop on Formal Aspects of Component Software, International Institute for Software Technology, United Nations University, Universidade do Minho, Oct 2010, Guimaraes, Portugal. pp.34-52. ⟨inria-00525438⟩

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