A Calculus for the Refinement and Evolution of Multi-user Mobile Applications

  • W. Greg Phillips
  • T. C. Nicholas Graham
  • Christopher Wolfe
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3941)


The calculus outlined in this paper provides a formal architectural framework for describing and reasoning about the properties of multi-user and mobile distributed interactive systems. It is based on the Workspace Model, which incorporates both distribution-independent and implementation-specific representations of multi-user and mobile applications. The calculus includes an evolution component, allowing the representation of system change at either level over time. It also includes a refinement component supporting the translation of changes at either level into corresponding changes at the other. The combined calculus has several important properties, including locality and termination of the refinement process and commutativity of evolution and refinement. The calculus may be used to reason about fault tolerance and to define the semantics of programming language constructs.


Conceptual Level Graph Grammar Implementation Level Conceptual Architecture Implementation Architecture 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • W. Greg Phillips
    • 1
  • T. C. Nicholas Graham
    • 2
  • Christopher Wolfe
    • 2
  1. 1.Electrical and Computer EngineeringRoyal Military College of CanadaKingstonCanada
  2. 2.School of ComputingQueen’s UniversityKingstonCanada

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