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Uncertainty Management in Object-Oriented Database Systems

  • Katsumi Tanaka
  • Susumu Kobayashi
  • Tomomi Sakanoue

Abstract

In this paper, we propose an approach and basic constructs to realize a fuzzy database processing capability on an Object-Oriented Database (OODB) system. The proposed approach can manage several types of uncertainties: (1) uncertain objects, (2) uncertain relationships between instance objects, (3) uncertain instance-of relationships, and (4) uncertain is-a (subclass/superclass) relationships. A notable feature is the usage of extensibility offered by OODB systems. That is, it is possible to add these several uncertainties without restructuring a database schema. We will describe our prototype fuzzy OODB system and briefly show the functionalities of the system by using an example movie database.

Keywords

Database Schema Fuzzy Relation Class Hierarchy Instance Object Uncertainty Management 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1991

Authors and Affiliations

  • Katsumi Tanaka
    • 1
  • Susumu Kobayashi
    • 1
  • Tomomi Sakanoue
    • 1
  1. 1.Dept. of Instrumentation EngineeringKobe UniversityKobe 657Japan

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