chap1a - Geographic Information Systems IDRISI ILWIS ARC...

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IDRISI ILWIS ARC/ INFO GIS SOFTWARE Geographic Information Systems PEOPLE POLICY AND PROCEDURES FOR RESOURCE MANAGEMENT DATA HARDWARE
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Evolution of GIS Ÿ revolution in information technology - Computer Technology - Remote Sensing - Global Positioning System (GPS) - Communication Technology Ÿ rapidly declining cost of computer hardware Ÿ enhanced functionality of software
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Why GIS? Ÿ 70% of the information includes some geographical facts in the decision-making process Ÿ Ability to assimilate divergent sources of data both spatial and non-spatial (attribute data) Ÿ Visualization impact Ÿ Sharing of information Ÿ Analytical capability in a spatial context
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A computer-based system capable of holding and using data describing places on the earth’s surface The real world consists of many geographies which can be represented as a number of related data layers. Hydrology Landuse Districts Topography Soils GIS GIS IS NOT THE DECISION MAKING TOOL GIS IS SUPPORTING TOOL FOR DECISION MAKERS
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GIS CAD/CAM Military Studies Cartography Remote Sensing Spatial Mathematics Urban Planning Geography Computer Science Earth Science Surveying and Photogrammetry Civil Engineering GIS Historical Development
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Handling Geographic Information Handling Geographic Information •Abstract representation Real-world Patan •Geographic features •Spreadsheets
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This note was uploaded on 11/14/2010 for the course MARKETING 234 taught by Professor Arshad during the Spring '10 term at IMSciences.

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chap1a - Geographic Information Systems IDRISI ILWIS ARC...

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