TY  - CHAP 
TI  - QoS contract-aware reconfiguration of component architectures using e-graphs
PB  - Springer Berlin Heidelberg
PY  - 2010
SN  - 9783642272684
UR  - http://hdl.handle.net/10906/79542
AB  - 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.
KW  - QoS (Calidad de servicio)
KW  - Ingeniería de software
KW  - Software
KW  - Automatización y sistemas de control
KW  - Automation command and control system
ER  -