The primary problem of the auditor in using primary analytical procedures is to find right things to examine. Quite obviously those are the ones having biggest affect on audit risk - and many of them might not be found with questions in the list above. The analyses themselves can be made easily. It may be a copy of the original file. Or it may be a new file, in which certain information is written from another file or from more of them.
Informative data is accurate, reliable, timely, complete and useful for the auditing purposes.
From its analysis the auditor can get information about the deficiencies of the accounting system, how the system has been used etc. This information may be valuable in audit planning.