A very interesting question to evaluate the value of a project might be 'Which of my customers have entered the system and for how long?'. This calls for an auditing rule of the type 'Tracing user activity'. The next steps explain how to set this up.
Adding a new auditing rule to trace user activity
Popup the menu of the 'Auditing rules' object and select 'New auditing rule'. Enter the description and select the option 'Trace user activity'.
Selecting the events and the logging period
Select the new auditing rule in the tree and select the 'Logon' and the 'Logoff' events on the right pane. You can eventually indicate the logging period. Save the auditing rule.
Indicating the auditing source and propagating it
Select the user group you want to trace in the tree and click on the 'Properties' tab on the right. Expand the 'Auditing' section and click on the 'Add new source' button on the right of the 'Auditing sources' listbox. A new source item will appear in that listbox. Click on the 'Propagate' button on the right of the 'Auditing sources' listbox and propagate the auditing source to the user group's dependants.
Assigning the auditing rule to the user group
Next, click on the 'Add' button on the right of the 'Auditing rules' listbox and select the new auditing rule on the window that opens. Click the 'OK' button to close that window and the selected auditing rule will appear in the listbox.
Propagating the auditing rule to the dependants
Click on the 'Propagate' button and propagate the auditing rule to the dependants. Save the user group (the dependent user account are included in the save).
Publishing the auditing rule
Publish the auditing rule to activate the setup.
From now on all logon and logon events of each user in that specific user group will be logged. You can open an overview of these logs by popping up the menu of that user group object in the tree and then selecting the 'Which of my customers have entered the system and for how long' item.
Opening the auditing log