Real-time specification inheritance anomalies and real-time filters


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Aksit, Mehmet and Bosch, Jan and Sterren van der, William and Bergmans, Lodewijk (1994) Real-time specification inheritance anomalies and real-time filters. In: 8th European Conference on Object-Oriented Programming, ECOOP, July 4–8, 1994, Bologna, Italy.

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Abstract:Real-time programs are, in general, difficult to design and verify. The inheritance mechanism can be useful in reusing well-defined and verified real-time programs. In applications developed by current real-time object-oriented languages, however, changing application requirements or changing real-time specifications in sub-classes may require excessive redefinitions although this seems to be intuitively unnecessary. We refer to this as the real-time specification inheritance anomaly. This paper introduces three kinds of real-time specification inheritance anomalies that one may experience while constructing object-oriented programs. As a solution to these anomalies, the concept of real-time composition filters is introduced. Filters affect the real-time characteristics of messages that are received or sent by an object. Through proper configuration of filters, one can specify real-time constraints, and reuse of these constraints without causing inheritance anomalies.
Item Type:Conference or Workshop Item
Copyright:© 1994 Springer-Verlag
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/18782
Official URL:http://dx.doi.org/10.1007/BFb0052172
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