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The Design and Application of Structured Types in Ptolemy II
Yang Zhao, Yuhong Xiong, Edward A. Lee, Xiaojun Liu, Lizhi C. Zhong

Citation
Yang Zhao, Yuhong Xiong, Edward A. Lee, Xiaojun Liu, Lizhi C. Zhong. "The Design and Application of Structured Types in Ptolemy II". International Journal of Intelligent Systems, 25(2):118-136, 2010.

Abstract
Ptolemy II is a component-based design and modeling environment. It has a polymorphic type system that supports both base types and structured types, such as arrays, records, and unions. This paper presents the extensions to the base type system that support structured types. In the base type system, all the types are organized into a type lattice, and type constraints in the form of inequalities can be solved efficiently over the lattice. We take a hierarchical and granular approach to add structured types to the lattice and extend the format of inequality constraints to allow arbitrary nesting of structured types. We also analyze the convergence of the constraint-solving algorithm on an infinite lattice after structured types are added. To show the application of structured types, we present two Ptolemy II models that have direct real-world background. The first one describes the workflow of a charity organization, and the second one implements part of the IEEE 802.11 specification. These models make extensive use of record and union types to represent structured information.

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Citation formats  
  • HTML
    Yang Zhao, Yuhong Xiong, Edward A. Lee, Xiaojun Liu, Lizhi
    C. Zhong. <a
    href="http://chess.eecs.berkeley.edu/pubs/665.html"
    >The Design and Application of Structured Types in
    Ptolemy II</a>, <i>International Journal of
    Intelligent Systems</i>, 25(2):118-136,  2010.
  • Plain text
    Yang Zhao, Yuhong Xiong, Edward A. Lee, Xiaojun Liu, Lizhi
    C. Zhong. "The Design and Application of Structured
    Types in Ptolemy II". <i>International Journal of
    Intelligent Systems</i>, 25(2):118-136,  2010.
  • BibTeX
    @article{ZhaoXiongLeeLiuZhong10_DesignApplicationOfStructuredTypesInPtolemyII,
        author = {Yang Zhao and Yuhong Xiong and Edward A. Lee and
                  Xiaojun Liu and Lizhi C. Zhong},
        title = {The Design and Application of Structured Types in
                  Ptolemy II},
        journal = {International Journal of Intelligent Systems},
        volume = {25},
        number = {2},
        pages = {118-136},
        year = {2010},
        abstract = {Ptolemy II is a component-based design and
                  modeling environment. It has a polymorphic type
                  system that supports both base types and
                  structured types, such as arrays, records, and
                  unions. This paper presents the extensions to the
                  base type system that support structured types. In
                  the base type system, all the types are organized
                  into a type lattice, and type constraints in the
                  form of inequalities can be solved efficiently
                  over the lattice. We take a hierarchical and
                  granular approach to add structured types to the
                  lattice and extend the format of inequality
                  constraints to allow arbitrary nesting of
                  structured types. We also analyze the convergence
                  of the constraint-solving algorithm on an infinite
                  lattice after structured types are added. To show
                  the application of structured types, we present
                  two Ptolemy II models that have direct real-world
                  background. The first one describes the workflow
                  of a charity organization, and the second one
                  implements part of the IEEE 802.11 specification.
                  These models make extensive use of record and
                  union types to represent structured information.},
        URL = {http://chess.eecs.berkeley.edu/pubs/665.html}
    }
    

Posted by Mary Stewart on 23 Apr 2010.
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