Notes
Outline
GIS & Decision Making
Topics
What is a GIS ?
Why would you use one ?
What data can you show in a GIS ?
How does a GIS work?
What do you use a GIS for?
How can decisionmaking benefit from using a GIS?
Some examples of GIS type queries.
Demo of GIS using demographic data.
What is a GIS ?
GIS = Geographic Information System
A software application that lets you view data in different types of maps.
GIS applications are designed to combine business information from a database with standard geographic areas and features.
Why would you use a GIS?
Powerful presentations of business data that communicate meaning in visual images
... a picture is worth a thousand words!
What data can you show in a GIS?
Dollars - rent, expenses, sales
Business units - buildings, leases, cars, etc.
How does a GIS work?
Combines business data and geographic data
Business information tagged with locations
Typically mailing address or longitude/latitude
Database of geographic areas (polygons)
States, Counties, Cities, Regions, MSAs, Zip Codes
Boundary details needed to define maps (shape files)
Database of geographic features
Roads, Rivers, Lakes, etc.
How does a GIS work? 1
Thematic displays are colored by area
Colors are used to display the ranges of data values
Can show patterns in data at levels such as region, state, county, MSA, or zip code
How does a GIS work? 2
Points can be colored or sized according to selected data values
Points can be shown on maps with geographic features (roads, rivers, boundary lines, etc.)
How does a GIS work? 3
GIS layers allow users to change displays without revising the data
Show any desired boundaries or features
Alter data ranges, legends, colors, etc.
Powerful Zoom and Drill Down Features
Go from national/regional to individual points
Drill down to granular data underlying all points and areas
What can you use a GIS for?
Making visual comparisons of data among geographic areas
Identifying and analyzing trends in data
Creating powerful business presentations that can rapidly convey complex ideas
Developing business graphics for reports, manuals, etc.
How can decisionmaking benefit from using a GIS ?
Program staff are better empowered to perform market research and analysis
Sales and marketing staffs can examine customer information by location
Regional management can more easily assess business operations, trend analysis
National management can better perform program oversight and undertake comparative analysis
Examples of GIS queries
Identifying areas with high densities of customers
Searching for high and low revenue areas
Finding locations with decreasing [or increasing] revenues
Pinpointing “soon to expire” contracts or purchasing arrangements
Examine revenue contribution by source
Examine expenditure pattern by use
Assess geographic data distribution for a specific customer or application