A new employee just started working with a company and only received their laptop in week 4.
The BPM analyst investigated the cause:

- Equipment was not ordered until week 2
- The manager did not complete the new hire checklist.
- The manager did not know how to access the checklist.
- No one communicated to the manager how to access the checklist.
- No communication plan for the on-boarding process.
- The root cause of the initial problem was that no one communicated to the manager there was a
checklist.

Which tool did the BPM analyst use in order to find out the root cause?