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Specification of failure-handling requirements as policy rules on self-adaptive systems
Pimentel, João Henrique; Castro, Jaelson; Franch Gutiérrez, Javier
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Serveis i Sistemes d'Informació; Universitat Politècnica de Catalunya. GESSI - Grup de recerca en Enginyeria del Software per als Sistemes d´Informació
Most adaptive systems have compensation mechanisms for recovering from or preventing failures. However, sometimes a compensation is not essential. Hence, diagnosing and compensating each and every one of their failures may be ineffective. Rather than polluting a requirements specification with fine grained definition of failure-handling conditions, this work aims to increase the flexibility of failure handling in self-adaptive systems using tolerance policies. We allow the expression of conditions in which certain failures may be ignored – i.e., conditions on which a failure will not be compensated. Such policies may lead to reduced costs and performance improvement. The FAST framework consists of the definition of a tolerance policy, the mechanisms to evaluate this policy and a tool to aid the creation of policies.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Enginyeria del software
Requirements engineering
Software failures -- Prevention
Self-adaptive systems
Autonomic systems
Failure requirements
Policy specification
Programari -- Control de qualitat
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/publishedVersion
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