The instructions provided describe how to add descriptive text in a model dialog. The descriptive text in a model dialog explains the overall use of the model and the function of each individual parameter.
In ArcGIS 10, the Description tab in ArcCatalog is used to edit the model documentation the same way the Edit Documentation option does in ArcGIS 9.3.1.
Information added in the Summary section displays underneath the title of the model in the contextual help when the model is double-clicked to run as a tool.
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