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Graphical Programming Using UML and SDL
December 2000 (vol. 33 no. 12)
pp. 30-35

Since its introduction a few years ago, the Unified Modeling Language (UML) has captured industrywide attention as a general-purpose language for modeling software systems. Although it does a good job in the early-phase development process, UML does leave some things to be desired in the systems design and implementation phases because it is lacking in structural and behavioral constructs. The author proposes a merger between UML and the Specification and Description Language (SDL) that would enhance UML's usefulness as a graphical programming language.

SDL, a language that models the architecture and behavior of event-driven, distributed systems in real-time environments, originated as a specification language within the telecommunications industry approximately 20 years ago. Today, SDL is often used as a full blown programming language. Although UML is headed in a similar direction, combining the two languages provides a modeling paradigm for visual software engineering that is more robust and effective than either language alone.

Citation:
Morgan Björkander, "Graphical Programming Using UML and SDL," Computer, vol. 33, no. 12, pp. 30-35, Dec. 2000, doi:10.1109/2.889090
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