Modeling Dimensions of Self-Adaptive Software Systems

  • Authors:
  • Jesper Andersson;Rogério Lemos;Sam Malek;Danny Weyns

  • Affiliations:
  • Department of Computer Science, Växjö University, Växjö, Sweden S-351 95;Computing Laboratory, University of Kent, Canterbury, Kent, UK CT2 7NF;Department of Computer Science, George Mason University, Fairfax, U.S.A. 22030;Department Computerwetenschappen, Katholieke Universiteit Leuven, Leuven, Belgium B-3001

  • Venue:
  • Software Engineering for Self-Adaptive Systems
  • Year:
  • 2009

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Abstract

It is commonly agreed that a self-adaptive software system is one that can modify itself at run-time due to changes in the system, its requirements, or the environment in which it is deployed. A cursory review of the software engineering literature attests to the wide spectrum of software systems that are described as self-adaptive. The way self-adaptation is conceived depends on various aspects, such as the users' requirements, the particular properties of a system, and the characteristics of the environment. In this paper, we propose a classification of modeling dimensions for self-adaptive software systems. Each modeling dimension describes a particular facet of the system that is relevant to self-adaptation. The modeling dimensions provide the engineers with a common set of vocabulary for specifying the self-adaptive properties under consideration and select suitable solutions. We illustrate how the modeling dimensions apply to several application scenarios.