PDM: an object-oriented data model

  • Authors:
  • Frank Manola;Umeshwar Dayal

  • Affiliations:
  • Computer Corporation of America, Cambridge, Massachusetts;Computer Corporation of America, Cambridge, Massachusetts

  • Venue:
  • OODS '86 Proceedings on the 1986 international workshop on Object-oriented database systems
  • Year:
  • 1986

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Abstract

This paper describes the development of the data model of PROBE, a knowledge-oriented DBMS being developed at CCA [DAYA85, DAYA86]. The data model, called PDM, is an extension of the Daplex functional data model [SHIP81, FOX84] that illustrates an integration of functional, relational, and object-oriented approaches. The extensions are primarily those required to handle the requirements of new database applications, such as engineering applications and cartography, having spatial or temporal semantics.