An overview of the Layer Snapshot toolset

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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.

Tools in the Layer Snapshot toolset

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	In conjunction with the Calculate Layer Snapshot tool, selects features that have had geometry, extent, or symbology changes.