ArcFM Snapping Manager
When placing features in the map, you may want one feature to connect to another. The ArcFM Snapping Manager allows you to determine how features connect or "snap" to one another during placement. When placing one feature that snaps to another, the cursor snaps to the existing feature when it reaches a defined distance, which is referred to as the snapping tolerance. You can set the snapping tolerance for a feature, as well as the features to which it snaps, using the ArcFM Snapping Manager in ArcCatalog.
The first time the ArcFM Snapping Manager is used in a workspace, it looks for a geometric network. The Snapping Manager uses the network connectivity rules to automatically initialize the snapping properties for the feature classes that participate in the network.