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What is GIS? GIS stands for Geographical Information Systems. GIS is the high-tech equivalent of the map. Maps contains information used in different ways by different individuals and organizations: locating ourselves in relation to the world around us, finding telephone wires and gas mains under the streets, locating mineral deposits and, in the case of the county auditor, determining the location and ownership of parcels of property in the county. The map has been in existence in much the same form for thousands of years but the traditional, printed form has a number of limitations. First, maps have been difficult and expensive to keep up to date. Second, often your area of interest lies on the corner of four adjacent sheets. In addition, maps are often very complex and may require an expert to extract the particular data which are of interest. In a GIS system all of the different types of map data are stored in a computer and displayed on a monitor or printed on paper. With GIS, the user can determine which area of the map is to be displayed and, which of the different sets of information (roads, settlements, vegetation, etc.) is of interest to him or her. This provides great flexibility, allowing a paper map to be quickly produced which exactly meets the needs of the user. Many County Auditors in Ohio have been moving county map information to a GIS system to provide the many benefits of these advanced mapping systems to their county governments. |
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