Distributed information system on an Internet/intranet environment (DISI2E)

  • Authors:

  • Oscar Luiz Monteiro de Farias;Luiz Má C. P. M. de Farias

  • Affiliations:

  • Universidade do Estado do Rio de Janeiro, Dept. de Engenharia de Sistemas e Computaçäo, Rua São Francisco Xavier, 524, bl. D, 5018, Maracanã, 20559-900, Rio de Janeiro, RJ, Bra ...;-

  • Venue:
  • Proceedings of the 8th ACM international symposium on Advances in geographic information systems
  • Year:
  • 2000

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Abstract

This paper relates our experience in developing DISI2E - a distributed system on an Internet/Intranet environment; built from modules the same way children play LEGO. These modules can be any kind of file visualized by a browser: pictures, html files, audio files, animations files and other types of files visualized via a plug-in, like executable programs (CGI), applets and queries to databases. The user through an interface very similar to the Windows Explorer selects these modules. Then, these modules, following the object-oriented paradigm, are related basically in part-of relations (containment relationships, like regions on a map) or some of them — simpler — are taken as attributes of more complex ones. All the user needs to operate DISI2E are http (hyper text transfer protocol) servers — to publish the distributed information — and browsers, enabling users to navigate through the distributed system visualizing non-structured information, querying databases and executing programs.