Abstract
In this paper we present the concept of roles as an extension to object-oriented database models in which identifiable groups of objects are allowed to evolve by assuming transient behavior, while preserving their identity. This mechanism can be used to implement multi-faceted, or polymorphic, objects by allowing the same object to be represented under different perspectives - possibly at discrete points in time - with each perspective having its own state and behavior. The concept of roles is used to implement dynamic properties and aspects of objects and provides for added modeling power and flexibility.
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CITATION STYLE
Papazoglou, M. P., Krämer, B. J., & Bouguettaya, A. (1994). On the representation of objects with polymorphic shape and behavior. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 881 LNCS, pp. 223–240). Springer Verlag. https://doi.org/10.1007/3-540-58786-1_82
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