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Department of Education
About the GIS Mapping Process:
A Geographic Information System (GIS) integrates computer technology, data, and geography to collect, manage, analyze, and display various types of information on a map. It provides viewers an ability to observe patterns and develop insights into possible relationships by examining them in relation to location.
Some of the uses and benefits of GIS mapping and spatial analysis include:
Measuring Geographic Distributions
Using GIS, map layers are constructed based on both geography and data, enabling viewers to explore and interpret information such as the distribution and location of resources, events, educational programs, and other information. As a result, relationships and comparisons - along with any changes over time - can be analyzed and evaluated.
Maps can reveal patterns in independent sets of data that could otherwise appear random and unrelated. Population demographics, median income, student achievement, and poverty are some examples of the types of data that can be displayed, queried, and analyzed. These tools can equip analysts with the ability to find solutions to complex problems and track existing changes.
Cluster analysis is a method of organizing data into statistically significant subsets of characteristics. Using GIS, features with similar attributes can be categorized, grouped, and displayed geographically in "hot spots", allowing their density, frequency (or lack of), and proximity to be observed and evaluated.
Analyzing Geographic Relationships
Along with mapping and analyzing patterns, GIS provides multiple methods of illuminating relationships between geographic features and associated data. Information is integrated and organized into layers which can convey a greater understanding of the relationships that may exist between locations - relationships that can explain and predict the how, why, and where of spatial analysis.
Global Information System (GIS) Map Library
The Evaluation, Assessment, and Data Center has completed a variety of projects using GIS mapping.
Click here for some examples of what we have to offer.
General Geographic Data
For more information contact:Diane Ehrle Office of Evaluation, Assessment, and Accountability Phone: 714-966-4391E-mail: