Posted by: dmconroy | May 5, 2009

Schuurman 4,5

4- Bringing It All Together: Using GIS to Analyze and Model Spatial Phenomena

This section discusses the significance and power of GIS. Mitchell uses the example of the

Cadastral system– historically used to store survey definitions of property lots, land tenure, property values and taxation rates, roads and their condition, zoning information, utility routing, and public recreation areas.

The development of GIS allowed land managers to look beyond just simple lines and look at things like the percentage of home owners within 1000 meters of a green space of library.

GIS is distinguished from cartography by its ability to analyze data

It can use overlay analysis and varies depending on whether vector or raster data is displayed

Buffers are frequently used to identify the boundaries around a certain spatial object that should be considered in analysis. Buffering is used to extend overlay analysis.

5- Where Do I Go From Here? GIS Training and Research

GISystems and GIScience are closely related but not equivalent. They are different but mutually dependent.

GIS data analysis and GIS research are two different things. Universities tend to stress the potential for abstract application of GIS and its ability to solve a broad range of issues but this does not always commensurate the practical application or technical training that is necessary to be hired in a real world GIS job.

The chapter then goes on to review Epistemology and Ontology which is decided to skip over.


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