An overview of the Layer Snapshot toolset

The Layer Snapshot toolset provides tools to identify shape and symbology modifications within a feature class. Use these tools to identify features that have changed across editions of a map or chart.

Tool	Description
Calculate Layer Snapshot	Calculates a snapshot of a feature layer by creating a snapshot value of feature geometry, extent, and symbology. The tool stores the snapshot value in a long integer field in the Input Features feature class. The Compare Layer To Snapshot tool uses the snapshot value to identify changes to geometry, extent, and symbology in a layer across multiple map documents.
Compare Layer To Snapshot	This tool, in conjunction with Calculate Layer Snapshot, selects features that have had geometry, extent, or symbology changes.

Tools in the Layer Snapshot toolset