Self-expression and Dynamic Attribute-Based Ensembles in SCEL

  • Giacomo Cabri
  • Nicola Capodieci
  • Luca Cesari
  • Rocco De Nicola
  • Rosario Pugliese
  • Francesco Tiezzi
  • Franco Zambonelli
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8802)


In the field of distributed autonomous computing the current trend is to develop cooperating computational entities enabled with enhanced self-* properties. The expression self-* indicates the possibility of a component inside an ensemble, i.e. a set of collaborative autonomic components, to self organize, heal (repair), optimize and configure with little or no human interaction. We focus on a self-* property called self-expression, defined as the ability to deploy run-time changes of the coordination pattern of the observed ensemble; the goal of the ensemble is to achieve adaptivity by meeting functional and non-functional requirements when specific tasks have to be completed. The purpose of this paper is to rigorously present the mechanisms involved whenever a change in the coordination pattern is needed, and the interactions that take place. To this aim, we use SCEL (Software Component Ensemble Language), a formal language for describing autonomic components and their interactions, featuring a highly dynamic and flexible way to form ensembles based on components’ attributes.


Self-expression coordination patterns ensemble computing 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Giacomo Cabri
    • 1
  • Nicola Capodieci
    • 1
  • Luca Cesari
    • 2
  • Rocco De Nicola
    • 3
  • Rosario Pugliese
    • 2
  • Francesco Tiezzi
    • 3
  • Franco Zambonelli
    • 1
  1. 1.Università degli Studi di Modena e Reggio EmiliaReggio EmiliaItaly
  2. 2.Università degli Studi di FirenzeFirenzeItaly
  3. 3.IMT Institute for Advanced Studies LuccaLuccaItaly

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