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5.pdf - What are the functions of a GIS? The questions that...

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27What are the functions of a GIS?The questions that a GIS is required to answer :What is at......?(Locational question ; what exists ata particular location)Where is it.....?(Conditional question ; which locations satisfy certainconditions)How has it changed........?(Trendy question ; identifies geographic occurrence or trends that have changed or in theprocess of changing)
28Which data are related........?(Relational question : analyzes the spatial relationship between objects ofgeographic features)What if.......?(Model based question ; computers and displays an optimum path, a suitable land,risky area against disasters etc. based on model)
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32Geographic FeaturesGeographic features are represented by two types of data.SPATIAL DATAATTRIBUTE DATAStreet NameAddress range on leftAddress range on rightLength to travelDirections to travel
33The Geographic DatabaseSpatial and attribute data types arelinked together by a commonidentifier.Geographic Database
34Other Terms Used forGeographic Information SystemsMultipurpose Geographic DataSystemMultipurpose Land Use SystemComputerized GISSystem for Handling NaturalResources Inventory DataImage Based InformationSystemLand Resources InformationSystemSpatial Data Management &Comprehensive AnalysisSystemPlanning Information SystemResource Information SystemNatural Resource ManagementInformation SystemSpatial Data Handling SystemGeographically ReferencedInformation SystemGeo-Information SystemSpatial Information SystemEnvironment Information SystemAGIS - Automated GISMultipurpose CadastreLand Information System (LIS)AM/FM - Automated Mappingand Facilities Management

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