Geographic Information Systems (GIS) is a computer-based tool used in a variety of industries for performing information analysis, automated mapping, and data integration. When used as a result of proper planning and attention to detail, GIS allows the end user to make better decisions quicker, and provides planners, engineers and technicians with the ability to understand and use data that may otherwise be overlooked. GIS combines the best of map making with the best of database management, resulting in a powerful combination of visual and computational analysis.