It is an information system that is designed to work with data referenced by spatial or geographic co-ordinates. A database system with specific capabilities for spatially- referenced data, as well as a set of operations for working with the data

Benefits from a GIS :
- geospatial data are better maintained ina standard format
- revision and updating are easier
- geospatial data and information are easier to search,analyze and represent
- more value added product
- geospatial data can be shared and exchanged freely
- productivity of the staff is improved and more efficient
- time and money are saved
- better decisions can be made