Pattern Application vs. Inheritance in SDL

B. Geppert, F. Rößler, R. Gotzhein

3rd IFIP International Conference on Formal Methods for Open Object-Based Distributed Systems, (FMOODS '99), Florence, Italy,Kluwer Academic Publishers 1999


Recently, SDL patterns have been introduced as a new concept to increase reusability in system design that is based on the formal description technique SDL. An integral part of this approach is the notion of pattern application, comprising the selection, adaptation, and composition of SDL patterns with a (possibly empty) specification context. We argue that the application of SDL patterns is a general form of specialization, supporting the reusability of design decisions, and compare it to the well-known reuse mechanism of inheritance in SDL.


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