Back to the CSISS Home Page.
GIS Cookbook: Glossary
  • Feature - A digital representation of something in the real world. For example, dots or points on a map layer may represent the location of schools, a line may represent a river, and a polygon may represent the outline of an area such as a county.
  • Feature class - Feature classes are classifications and representations of geographic features and supporting data in coverages. Feature classes represented as geographic features include points, arcs, nodes, route-systems, routes, sections, polygons, and regions. They can also store annotations, dimensions, x, y, z coordinates, and addresses. Feature classes can be found in a feature dataset where the same coordinate system can be shared and organized into a geometric network that can maintain topological relationships between its feature classes. Feature classes can also exist independently in the geodatabase.
  • Feature dataset - A feature dataset is a collection of feature classes sharing the same spatial reference. These feature classes can take part in topological relationships with each other such as in a geometric network. Feature datasets can also store object classes and relationship classes.


Core Programs | Learning Resources | Spatial Resources | Spatial Tools | Search Engines | CSISS Events | Community Center | About CSISS
Site Map | Contact CSISS | Plug-ins | Privacy Policy | Site Credits | Home

Copyright © 2002-2014 by Regents of University of California, Santa Barbara
This website is designed for 800x600 resolution and IE 4+, NS4, NS6+, Mozilla 9.x, Opera 5, or Mac IE5/NS