A Brief Outline of National and Autonomic Regional Systems
Keywords:
Sistemas de Información Geográfica, Sistema de Información Urbana (SIU), EspañaAbstract
For the author, SIG’s are the child of a call in the Eighties of the last century for cartography to
serve a series of public policy demands. They were designed to organize special geo- referenced
data. They allowed for the user to set up interfaces, analyze spatial information, edit data and
maps and communicate the outcome of such activities. Broadly speaking a distinction could be
made between those for use by specialized users such as the Automatic Hydrological Information
System or those intended more for another sort of access seeker and mainly for the citizen at large
and here a case in point would be the SIG Catastral (National Land Survey). Autonomous Regional
Governments have also set up their own Planning Information Diffusion (SIU) sites but, alas, not
according to any common criterion and thus denying the user any overall view of the country as a
whole. SIU was thus brought into being to offer a public and universal National SIG covering
information on both Town and Country issues.
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Copyright (c) 2010 M. D. Aguado Fernández

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