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Published byKevin McCormick Modified over 8 years ago
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Introduction to Geographic Information Systems Introduction
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The Purpose of GIS GIS Definitions GIS Workflow The Real World Representation of GIS Maps Databases Spatial Databases Capabilities of GIS Content
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We want to understand what is going on in our world, and this is why we study the phenomena of geographic change. The Purpose of GIS
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The three important stages of working with geographic data: 1.Data preparation and entry: The early stage in which data about the study phenomenon is collected and prepared to be entered into the system. 2.Data analysis: The middle stage in which collected data is carefully reviewed, and, for instance, attempts are made to discover patterns. 3.Data presentation: The final stage in which the results of earlier analysis are presented in an appropriate way.
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GIS Definition A system of hardware, software, data, people, organizations and institutional arrangements for collecting, storing, analyzing, and disseminating information about areas of the earth. A geographic information system as a computerized system that facilitates the phases of data entry, data analysis and data presentation especially in cases when we are dealing with georeferenced data. A similar definition:
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GIS Principle
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GIS Workflow
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The real world and representations of it Maps Databases Spatial databases
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The real world and representations of it
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