TAO: An object orientation kernel

  • Kenichi Yamazaki
  • Yoshiji Amagai
  • Masaharu Yoshida
  • Ikuo Takeuchi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 742)


This paper proposes an object-oriented programming language framework that deliberately separates mechanism from policy. Mechanisms such as slot access and message passing are designed to have a natural semantics and to be efficient. Conventional and controversial concepts such as class, inheritance, and method combination, on the other hand, are classified as policy, and are left open to the user by providing so-called hook mechanisms. TAO is a language conforming to this framework and has only a few more than twenty primitives for object-oriented programming. This paper also gives examples illustrating how conventional concepts of object-oriented programming can be implemented on top of these primitives.


Message Passing Object Region Object Orientation Method Handler Object Symbol 
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 Berlin Heidelberg 1993

Authors and Affiliations

  • Kenichi Yamazaki
    • 1
  • Yoshiji Amagai
    • 1
  • Masaharu Yoshida
    • 1
  • Ikuo Takeuchi
    • 1
  1. 1.Basic Research Laboratories, Human Interface LaboratoriesNippon Telegraph and Telephone CorporationTokyoJapan

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