You can trace the metadata details of individual rule definitions.
To trace the underlying metadata details of a rule definition in the
Rule window:
Select the checkbox adjacent to the Rule Code whose details are to be
traced.
Click Trace Definition button from the toolbar.
The Trace Definition window is displayed with the details
such as Traced Object (Name and definition type) and Processes and Runs in which
the selected Rule is used. In the Trace Definition window, you can also
select individual Process or Run and click to view the definition
details.