A GIS is any manual or computer based system designed to store and manipulate spatially referenced data
A GIS or Geographic Information System is a system designed for storing, analyzing, and displaying spatial data. Manage Data Manipulate Data Analyze Data
Typical questions include: <ul><li>What is at ......? </li></ul><ul><li>Where is ......? </li></ul><ul><li>What has changed since ......? </li></ul><ul><li>What spatial patterns exist......? </li></ul><ul><li>What if ......? </li></ul>
GIS ~ CAPABILITIES AND USES Digitizing Address Matching Event Mapping Thematic Mapping Join and Merge Tables Tabular and Spatial Queries Thematic Mapping
The ultimate purpose of a GIS is to answer spatial questions... ...NOT necessarily to make ‘PRETTY’ maps!
An important thing to remember… the questions must be asked before the data are developed !
A GIS can be VERY FRUSTRATING! So have patience .... We’re here to help!!!
What is ArcGIS? An integrated collection of GIS software products for building a complete GIS. The ArcGIS framework enables you to deploy GIS functionality—in desktops, servers (including the Web), or mobile devices. Who is ESRI ? Environmental Systems Research Institute, Redlands, CA http://www.esri.com
What’s the difference between: ArcGIS? ArcView? ArcInfo? Versions 1.0 – 3.3 Originally developed for non-GIS specialists - Biologist, Managers, Planners . GUI. User-friendly. Proprietary Programming Language - Avenue. Reads Shape files and Coverages. Versions 1.0 – 8.0 High end developers tool – High geek factor. Hosted on a Unix, IBM mainframe. Command line – Arc. Proprietary Programming Language - AML. Not user-friendly or for the casual user! A collection of GIS products - Desktop, Server, Embedded, Mobile. Based on Visual Basic. Designed for the Individual or a large Corporation. Versions 9.0 – 9.2
ArcMap ArcCatalog ArcToolbox View GIS data (graphically or in tables) & create maps. Manage & organize GIS files Convert GIS file formats (re-project & transform)
Familiarizing with the software Start software Add data layers Zoom around Assign symbols Save project