An overview of the Topology toolset(ArcInfo and ArcEditor only)
Release 9.3 Last modified November 13, 2008	Print all topics in : "Topology toolset"

In geographic information system (GIS) technology, topology is the model used to describe how features share geometry; it is also the mechanism for establishing and maintaining topological relationships between features. ArcGIS implements topology through a set of validation rules that define how features may share a geographic space and a set of editing tools that work with features that share geometry in an integrated fashion.
The Topology toolset contains a set of tools that can be used to manage a topology. The following table lists the tools available in the Topology toolset and provides a brief description of each.

NOTE: Tool availability is determined by the ArcGIS license. Licensing requirements for each tool are listed below.

Tool	Description
Add Feature Class To Topology	Adds a new feature class to a topology. Requires an ArcEditor or ArcInfo license.
Add Rule To Topology	Adds a new rule to a topology. Requires an ArcEditor or ArcInfo license.
Create Topology	Creates a new, empty topology. Requires an ArcEditor or ArcInfo license.
Remove Feature Class From Topology	Removes a feature class from a topology. Requires an ArcEditor or ArcInfo license.
Remove Rule From Topology	Removes a rule from a topology. Requires an ArcEditor or ArcInfo license.
Set Cluster Tolerance	Alters the cluster tolerance for the input topology. Requires an ArcEditor or ArcInfo license.
Validate Topology	Evaluates features against topology rules within a specified area. Requires an ArcEditor or ArcInfo license.

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