7. gis software - faculty.kfupm.edu.sa · geographic information systems and science second edition...
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Geographic Information Systems and ScienceSECOND EDITIONPaul A. Longley, Michael F. Goodchild, David J. Maguire, David W. Rhind © 2005 John Wiley and Sons, Ltd
7. GIS Software
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© 2005 John Wiley & Sons, Ltd
Overview
Evolution of GIS softwareArchitecture of GIS softwareBuilding GIS software systemsTypes of softwareExample productsGIS software use
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GIS SoftwareThe geoprocessing engines of GISMajor functions
Collect, store, mange, query, analyze and present
Key termsProgram – collections of instructions to manipulate dataPackage – integrated collection of programsComponent – self-contained, reusable software building blocks
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Evolution of GIS SoftwareSub-routine libraries (60s/70s)
Libraries of small programs (sub-routines)Required advanced programming skills
Tool box with CLI (70s/80s)Basic package with Command Line InterfaceRequired advanced technical skills
Task-oriented system (90s/00s)Graphical User Interface (GUI)Customization capabilities to create specific-purpose applications
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Types of GIS Implementation
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Three-tier Architecture
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GS Software Architectures
DesktopClient-serverCentralized
Desktop/CitrixServer
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Desktop GIS
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Client-server GIS
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Centralized Desktop GIS
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Centralized Server GIS
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© 2005 John Wiley & Sons, Ltd
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Desktop and Network GIS
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Desktop and Internet GIS
InternetLAN/WANNetwork
Windows/Unix/Linux
Windows/Unix/Linux
Server platform
ThickThin/thickServer size
BrowserWindowsClient platform
ThinThickClient Size
NetworkDesktopFeature
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Daratech Market Share 2003
Intergraph13%
Autodesk9%
Other16%
Leica7%
GE Energy8%IBM
9%
ESRI34%
MapInfo4%
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Desktop GISData exploitation
Data accessQuerySpatial AnalysisSimple editing
VisualizationMappingCustomization$1500
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Figure 7.11 GeoMedia
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© 2005 John Wiley & Sons, Ltd
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Server GISCentralized GIS
Deploy multi-user desktopInternet GISEnterprise GIS Servers
Manage/deploy centrallyLow cost of ownershipGood for data exploitation
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Hand-heldField-based GIS
Lightweight hardwareExtension of desktopLimited capabilitiesData collectionMobile mapping$500
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Estimated GIS Users
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SummaryGIS software is developing fastConsistent GIS architectureMajor development areas
InternetHand-held
Increasingly standards-basedVery wide rangingRationalization of vendors