Geographic Information System (GIS)

About the GIS Mapping Process: 

A Geographic Information System (GIS) integrates computer software and data for capturing, managing, analyzing, and 
displaying all forms of geographically referenced information. It allows GIS_Map.JPG
viewers to understand patterns and relationships to solve issues
by looking at them in relation to location. The following benefits of GIS maps:

Measuring Geographic Distributions

Measuring the distribution of a set of features allows one to calculate a characteristic of the distribution, such as its center, compactness, or orientation. This is helpful because it can be used to track changes in the distribution or to compare distributions of different features.

Identifying Patterns

Identifying the pattern created by a set of features allows for a better understanding of the distribution of features, monitor conditions, compare different features, or track changes.

Identifying Clusters

Identifying clusters allows one to map hot spots and cold spots. By comparing the clusters to the locations of other features it leads to a better understanding of why clusters occur and what action should take place.

Analyzing Geographic Relationships

Analyzing the relationships between geographic phenomena gives one a better understanding of what's happening in a location, lets one predict where something might occur, and helps one examine why things occur where they do.

Global Information System (GIS) Map Library

The Office of Evaluation, Assessment, and Accountabilities has completed a variety of projects using GIS mapping.

Click here for some examples of what we have to offer.

Academic Performance Index (API)

Graduation Rates

Childhood Obesity

Demographics

General Geographic Data

 

For more information contact:
Diane Ehrle 
Office of Evaluation, Assessment, and Accountability 
Phone: 714-966-4391

E-mail: dehrle@ocde.us​