Design Exploration > Using Checkpoints > About Viewing Changes in a Checkpoint
  
About Viewing Changes in a Checkpoint
Use the View Changes dialog box to show changes made to models between a selected checkpoint and other points in the design process along the path of the checkpoint from the premodified checkpoint. You can view changes to the selected checkpoint from the following situations:
The start of the Creo Parametric session
The pre-modified checkpoint of the Design Exploration session
A different checkpoint
The changes made in the selected checkpoint