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Logical distribution of applications and data

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1 Author(s)
C. T. Baker ; IBM Data Systems Division laboratory, P.O. Box 390, Poughkeepsie, NY 12602, USA

A major goal of distributed system design is to bring data processing functions and data closer to the users than is possible with a centralized design. The expected advantageosf this arrangement, such as local autonomy, responsiveness, etc., have been expressed at length in the literature on distributed data processing. However, we have noted that a nodeo f a distributed system does not function in a totally isolated, stand-alone mode. Other nodes depend upon it or it depends upon other nodes. If these interdependencies are too strong, the sought-after advantages of the distributed data processing system are lost. It is essential, therefore, that such a system be designed so that the nodal interdependencies are at an acceptably low level. We have illustrated one approach to this task.

Note: The Institute of Electrical and Electronics Engineers, Incorporated is distributing this Article with permission of the International Business Machines Corporation (IBM) who is the exclusive owner. The recipient of this Article may not assign, sublicense, lease, rent or otherwise transfer, reproduce, prepare derivative works, publicly display or perform, or distribute the Article.  

Published in:

IBM Systems Journal  (Volume:19 ,  Issue: 2 )