Show Navigation | Hide Navigation
You are here:
Geodatabases and ArcSDE > Building a geodatabase > Working with geodatabase datasets > Topologies

An overview of topology in ArcGIS

Release 9.3
Last modified October 12, 2010
E-mail This Topic Printable Version Give Us Feedback

Print all topics in : "Topologies"

Note: This topic was updated for 9.3.1.

If you have features that are coincident (i.e., share the same location of coordinates, boundaries, or nodes), chances are that using a geodatabase topology can help you better manage your geographic data.

Most users care deeply about the spatial integrity of their feature data, and geodatabase topologies help you to better manage your data integrity. Using a topology provides a strong mechanism to perform integrity checks on your data and will help you to validate and maintain better feature representations in your geodatabase.

Also, many users like to use topologies for modeling numerous spatial relationships between features. These enable support for a variety of analytic operations (e.g., to find adjacent features, to work with coincident boundaries between features, and to navigate along connected features). Topologies enable richer analytic functions in your GIS.

Topological relationships

Topology is the arrangement for how point, line, and polygon features share geometry. Topology is employed in order to

The following topics cover key concepts and ArcGIS support for topology. They also cover a number of common workflows for building and using topologies in ArcGIS. See Topology basics and Topology in ArcGIS for conceptual information.

The process of building a topology from existing data can be summarized in the following steps:

Topology workflow and tasks
Tasks Links for more information
Design your topology. See Designing a geodatabase topology.
Create a set of feature classes within a common feature dataset in a geodatabase. See Working with feature datasets.
If you have existing feature data, load these into your feature classes. See Loading data into feature classes.
Create the topology using ArcCatalog or geoprocessing tools. See Using ArcCatalog to create a topology
Using geoprocessing to create a topology.
Build and validate your topology. See Validating a topology.
Draw and display topologies in ArcMap. See Drawing and displaying topologies in ArcMap.
Use the ArcMap editor to identify and fix errors. See Editing a topology.
Manage updates to feature classes and manage dirty areas. See Validating a topology.
Manage topology within a versioned geodatabase. See Topology and versioned geodatabases.
Perform many other common editing tasks. See Common topology tasks.

Please visit the Feedback page to comment or give suggestions on ArcGIS Desktop Help.
Copyright © Environmental Systems Research Institute, Inc.