Comparing Traceability Models with Snapshots

A snapshot is a copy of the traceability model at a particular time. You can compare a snapshot with the current traceability graphical view.

This task shows you how to:

Before you begin: In a scope, create a traceability model. For more information, see Creating a Traceability System.

Create a Snapshot

  1. From the tree, click Traceability to display the traceability model.
  2. From the properties area, click Create Snapshot , and then click OK to close the Create Snapshot dialog box.
    In the Snapshot folder of the tree, your snapshot is created in a .traimage format.

    Important: The snapshot captures elements, links, properties, and preview that are currently stored in the scope.
  3. Optional: To change the default name, click Rename Snapshot in the properties area.
  4. Back to the coverage view, modify your model (for example, you can add or remove links).
  5. Repeat Step 2 to create a second snapshot.
  6. Optional: If needed, click Delete Snapshot in the properties area.

Compare Snapshots

  1. In the Snapshot folder of the tree, select a first snapshot. This snapshot will be compared to traceability and with other snapshots of the same scope.

    Tips:
    • To compare all the snapshots with the current coverage view, select Traceability in the tree.
    • If there is only one snapshot in the folder, this snapshot is compared with the current traceability graphical view.

  2. From the properties area, click Compare Snapshots , and then click OK to close the Compare Snapshots dialog box.
  3. From the Comparison tree tab, select a second snapshot.
    Differences are displayed in the work area. The details of the compared snapshots are displayed in the properties area.
  4. From the Comparison tree tab, select another snapshot.
    The comparison is computed between the first snapshot and your last selection.
  5. To filter the tables, click Filter , and then select one of the proposed attributes.

  6. To display a summary of the comparison, click Summary (second bullet) in the navigation bar.