Components of a gis
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Components of a gis






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Components of a gis Components of a gis Document Transcript

  • MODULE 1: INTRODUCTION AND DATA STRUCTURECOMPONENTS OF A GISA GIS has a series of components that combine to make the system work. Thesecomponents are critical to a successful GIS.A working GIS integrates five keycomponents: HARDWARE SOFTWARE DATA PEOPLE METHODSHardwareHardware is the computer system on which a GIS operates. Today, GIS softwareruns on a wide range of hardware types, from centralized computer servers todesktop computers used in stand-alone or networked configurations.SoftwareGIS software provides the functions and tools needed to store, analyze, anddisplay geographic information. The choice shall depend on the needs of theorganization, functionality desired and the money available, and the period forwhich the planning is being done. One may need to make a comparison of costsand benefits before making a final decision.DataPerhaps the most important component of a GIS is the data. Geographic data andrelated tabular data can be collected in-house, compiled to custom specificationsand requirements, or occasionally purchased from a commercial data provider. AGIS can integrate spatial data with other existing data resources, often stored in a Sumant Diwakar
  • MODULE 1: INTRODUCTION AND DATA STRUCTUREcorporate DBMS. The integration of spatial data and tabular data stored in aDBMS is a key functionality afforded by GIS.PeopleGIS technology is of limited value without the people who manage the system anddevelop plans for applying it to real world problems. GIS users range fromtechnical specialists who design and maintain the system to those who use it tohelp them perform their everyday work. The identification of GISspecialists versus end users is often critical to the proper implementation of GIStechnology.MethodsA successful GIS operates according to a well-designed implementation plan andbusiness rules, which are the models and operating practices unique to eachorganization.As in all organizations dealing with sophisticated technology, new tools can onlybe used effectively if they are properly integrated into the entire businessstrategy and operation. To do this properly requires not only the necessaryinvestments in hardware and software, but also in the retraining and/or hiring ofpersonnel to utilize the new technology in the proper organizational context.Failure to implement your GIS without regard for a proper organizationalcommitment will result in an unsuccessful system. Sumant Diwakar