%0 Journal Article 
%T QoS contract-aware reconfiguration of component architectures using e-graphs
%J Lecture Notes in Computer Science
%D 2010
%U http://hdl.handle.net/10906/79542
%X 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.
%K QoS (Calidad de servicio)
%K Ingeniería de software
%K Software
%K Automatización y sistemas de control
%K Automation command and control system
%~ GOEDOC, SUB GOETTINGEN