Definition of GIS
A very brief definition and description of GIS is that GIS is a computerized system that deals with spatial data in terms of the following:
♦ Collection: Gathering data from many sources
♦ Storage: Efficient digital storage
♦ Management of Data: Administering and keeping track of data, including integration of various data sets into a common database.
♦ Retrieval: Easy and efficient selection and viewing of data in a variety of ways.
♦ Conversion: Converting data from one form to another; that is, conversion from one geometric projection to another, rescaling, and other computer “tricks” to make the data more useful. Changing one map file to match another.
♦ Analysis: Manipulating data to produce insight and new information
♦ Modeling: Simplifying the data or the real world and its processes to understand how things work.
♦Display: Presenting data in various ways for easy understanding; example, maps and reports.
Defination
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