| J.D.McGregor, D.M. Dyer, A Note on Inheritance and State Machines, ACM Software Engineering Notes, Vol. 18, No. 4, Oct. 1993, pp. 61-69. |
....research groups to investigate this question in more detail. First published results can be grouped into constructive and descriptive approaches, respectively. They deal with a state transition diagram (STD) description of behaviour. Constructive approaches like [SaHaJu 94] LopCos 93] and [McGDye 93] define rules how to modify the STD of a superclass to get a legal STD of a subclass. An analogous result has been published by [KapSch 94] in the context of Petri net like descriptions of object behaviour. Descriptive approaches like homomorphisms [EbeEng 94] or check conditions [SaHaJu 94] ....
....life cycle that is allowed for objects of the superclass. This approach reflects the idea that objects of a subclass should always also behave like objects of the superclass if they are viewed only according to the superclass description. But, there are concrete examples in the literature (e.g. McGDye 93] and [ShlMel 92] or some ad hoc intuitively drawn state transition diagrams, which do not fulfill the above mentioned conditions. Especially in modeling the behaviour of reactive systems one often wants to describe object behaviour following a slightly different intuition: The STD describes ....
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J.D.McGregor, D.M. Dyer, A Note on Inheritance and State Machines, ACM Software Engineering Notes, Vol. 18, No. 4, Oct. 1993, pp. 61-69.
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J.D.McGregor, D.M. Dyer, A Note on Inheritance and State Machines, ACM Software Engineering Notes, Vol. 18, No. 4, Oct. 1993, pp. 61-69.
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J.D.McGregor, D.M. Dyer, A Note on Inheritance and State Machines, ACM Software Engineering Notes, Vol. 18, No. 4, Oct. 1993, pp. 61-69.
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