Session comparison

Session Comparison helps you understand how two recorded sessions differ. It is most useful when the sessions represent a clear before-and-after case or two similar requests with different results.

Open a comparison

In Time Machine, select Compare with another session when the action is available to your role. Choose a recent session from the same application. The picker excludes the session you already have open and lists up to eight alternatives.

The current Time Machine view does not show this action to Developers or Business Owners. Use a comparison link supplied by a supported baseline or detected-change workflow when available; entering two IDs alone does not open the comparison.

Review the result

1. Check the identities and dates of Session A and Session B. A session marked as a baseline uses the Baseline label.
2. Review Same Outcome or Different Outcome, then compare the recorded decisions.
3. Check timing, step counts, and available governance evidence for differences that matter to the question you are investigating.
4. Return to the source session when you need its full evidence trail.

If either session cannot load, the page cannot complete the comparison. Go back and confirm that both records are still available within your access.

Choose useful sessions

Compare sessions with a clear relationship, such as the same application before and after a model, prompt, integration, or policy change. A comparison does not prove what caused a difference; use the recorded evidence to support that conclusion.

Keep the request type and operating conditions as similar as possible. Note any model, prompt, or policy changes before attributing the result to one cause. A faster session is not necessarily a better decision, and matching outcomes do not establish that both sessions have complete evidence.