relation: http://eprints.imtlucca.it/1851/
title: Formalising adaptation patterns for autonomic ensembles
creator: Cesari, Luca
creator: De Nicola, Rocco
creator: Pugliese, Rosario
creator: Puviani, Mariachiara
creator: Tiezzi, Francesco
creator: Zambonelli, Franco
subject: QA75 Electronic computers. Computer science
description: Autonomic behavior and self-adaptation in software can be supported by several architectural design patterns. In this paper we illustrate how some of the component- and ensemble-level adaptation patterns proposed in the literature can be rendered in SCEL, a formalism devised for modeling autonomic systems. Specifically, we present a compositional approach: first we show how a single generic component is modelled in SCEL, then we show that each pattern is rendered as the (parallel) composition of the SCEL terms corresponding to the involved components (and, possibly, to their environment). Notably, the SCEL terms corresponding to the patterns only differ from each other for the definition of the predicates identifying the targets of attribute-based communication. This enables autonomic ensembles to dynamically change the pattern in use by simply updating components' predicate definitions, as illustrated by means of a case study from the robotics domain.
publisher: Springer
date: 2014
type: Book Section
type: PeerReviewed
identifier:   Cesari, Luca and De Nicola, Rocco and Pugliese, Rosario and Puviani, Mariachiara and Tiezzi, Francesco and Zambonelli, Franco  Formalising adaptation patterns for autonomic ensembles.   In:  Formal aspects of component software: 10th international symposium, FACS 2013, Nanchang, China, October 27-29, 2013, revised selected papers.   Lecture notes in computer science  (8348).  Springer, pp. 100-118.  ISBN 978-3-319-07601-0      (2014)  
relation: http://dx.doi.org/10.1007/978-3-319-07602-7_8
relation: 10.1007/978-3-319-07602-7_8