Object Schizophrenia Problem in Object Role System Design

  • Authors:

  • K. Chandra Sekharaiah;D. Janaki Ram

  • Affiliations:

  • -;-

  • Venue:
  • OOIS '02 Proceedings of the 8th International Conference on Object-Oriented. Information Systems
  • Year:
  • 2002

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Abstract

This paper argues for strong notions of Object Schizophrenia (OS) and Object Schizophrenia Problem (OSP) and makes subtle distinction between them. It presents how OSP can occur in modeling is-part-of and is-role-of relationships. Basically, we assert that OS-condition of an object does not necessarily entail OSP. The occurrence of OSP is investigated in the realm of role modeling. Broken consultation, wrong message interpretation and security schizophrenia problem that arise due to reusing mechanisms in role modeling such as delegation are incorporated as new symptoms into the semantic scope of the notion of OSP. We introduce plurality of OS and OSP by categorizing OSs and OSPs based on various models for object relationships and OSP symptoms. A comparison picture of the existing role models is presented with regard to OSP. We assert that there can be different approaches for handling the OSP and that a solution to OSP works out only in a model-specific way. In the realm of role modeling, this work emphasizes that modeling the role paradigm should ensure that the role model is OSP-free. We argue for strong notion of object identity for role-playing objects in terms of the Oid integrity principle.