After using tools on the Editor toolbar to correct an overlap error in a geodatabase topology, the error is still displayed. What must the analyst do to rectify this?

Validating the topology is a crucial step after making corrections to ensure that any errors within the dataset are accurately identified and rectified. When an overlap error is corrected, the changes need to be validated against the topology rules established for the dataset. This process checks the data again and reassesses the relationships that dictate how features intersect and overlap. By selecting the validation option, the analyst ensures that the modifications made are recognized and that any remaining errors, including the overlap, are cleared from the topology.

Refreshing the display, altering symbology, or using the Fix Topology Error tool may not address the root of the issue, as they can either just update the visual representation without confirming the validity of the topology or fix a problem without confirming all rules have been appropriately applied. Validation serves as a comprehensive check post-correction, crucial in maintaining data integrity within the geodatabase.