What is GIS?

Geographic information system (GIS) is a system of computer hardware, software, and people that can assemble, store, manipulate, analyze, and display geographic data. Geographic data is any information that has a specific location. For example: roads, buildings, political boundaries, property lines, natural resources, etc.

With GIS it is possible to combine many layers of data from different sources and analyze the relationships between the data layers. The results of the analysis can then be displayed as a map or report to assist in decision making. For more information view the National Geographic Resource Library Encyclopedia.

Show All Answers

1. What does GIS stand for?
2. What is GIS?
3. How is GIS used on Nantucket?
4. Can anyone order a map?
5. How do I order a map?
6. How much does a map cost?
7. How up-to-date is the assessor's information listed for each parcel?
8. Why does it look like my house is partially on my neighbor's property?