Citation
Edward A. Lee. "Disciplined Heterogeneous Modeling". Talk or presentation, 6, October, 2010; Invited Keynote Talk, MODELS 2010, Oslo, Norway, October 6-8, 2010.

Abstract
Complex systems demand diversity in the modeling mechanisms. One way to deal with a diversity of requirements is to create flexible modeling frameworks that can be adapted to cover the field of interest. The downside of this approach is a weakening of the semantics of the modeling frameworks that compromises interoperability, understandability, and analyzability of the models. An alternative approach is to embrace heterogeneity and to provide mechanisms for a diversity of models to interact. This paper reviews an approach that achieves such interaction between diverse models using an abstract semantics, which is a deliberately incomplete semantics that cannot by itself define a useful modeling framework. It instead focuses on the interactions between diverse models, reducing the nature of those interactions to a minimum that achieves a well-defined composition. An example of such an abstract semantics is the actor semantics, which can handle many heterogeneous models that are built today, and some that are not common today. The actor abstract semantics and many concrete semantics have been implemented in Ptolemy II, an open-source software framework distributed under a BSD-style license.

Electronic downloads

• Heterogeneous_Models.pdf · application/pdf · 4627 kbytes
• http://chess.eecs.berkeley.edu/pubs/679.html. (Conference Paper)

• HTML

  Edward A. Lee. <a
  href="http://chess.eecs.berkeley.edu/pubs/706.html"
  ><i>Disciplined Heterogeneous
  Modeling</i></a>, Talk or presentation,  6,
  October, 2010; Invited Keynote Talk, MODELS 2010, Oslo,
  Norway, October 6-8, 2010.

• Plain text

  Edward A. Lee. "Disciplined Heterogeneous
  Modeling". Talk or presentation,  6, October, 2010;
  Invited Keynote Talk, MODELS 2010, Oslo, Norway, October
  6-8, 2010.

• BibTeX

  @presentation{Lee10_DisciplinedHeterogeneousModeling,
      author = {Edward A. Lee},
      title = {Disciplined Heterogeneous Modeling},
      day = {6},
      month = {October},
      year = {2010},
      note = {Invited Keynote Talk, MODELS 2010, Oslo, Norway,
                October 6-8, 2010.},
      abstract = {Complex systems demand diversity in the modeling
                mechanisms. One way to deal with a diversity of
                requirements is to create flexible modeling
                frameworks that can be adapted to cover the field
                of interest. The downside of this approach is a
                weakening of the semantics of the modeling
                frameworks that compromises interoperability,
                understandability, and analyzability of the
                models. An alternative approach is to embrace
                heterogeneity and to provide mechanisms for a
                diversity of models to interact. This paper
                reviews an approach that achieves such interaction
                between diverse models using an abstract
                semantics, which is a deliberately incomplete
                semantics that cannot by itself define a useful
                modeling framework. It instead focuses on the
                interactions between diverse models, reducing the
                nature of those interactions to a minimum that
                achieves a well-defined composition. An example of
                such an abstract semantics is the actor semantics,
                which can handle many heterogeneous models that
                are built today, and some that are not common
                today. The actor abstract semantics and many
                concrete semantics have been implemented in
                Ptolemy II, an open-source software framework
                distributed under a BSD-style license.},
      URL = {http://chess.eecs.berkeley.edu/pubs/706.html}
  }
  

Posted by Mary Stewart on 8 Oct 2010.
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