Object interaction

  • J. F. Costa
  • A. Sernadas
  • C. Sernadas
  • H. -D. Ehrich
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 629)


Objects are presented as processes endowed with state-dependent slots. Active objects have non-quiescent states. A morphism between two objects expresses that the source object is part-of the target object, in such a way that the possible observations of the part, considered in isolation, are constrained within the whole. Our semantic domain for object-oriented concepts includes a cocomplete category of objects where several kinds of dynamic interaction like event and memory sharing are reflected by colimits.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • J. F. Costa
    • 1
  • A. Sernadas
    • 1
  • C. Sernadas
    • 1
  • H. -D. Ehrich
    • 2
  1. 1.NESCLisboa CodexPortugal
  2. 2.Tech. Univ. BraunschweigBraunschweigGermany

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