audit trail
noun
1.
Accounting.
the process or an instance of cross-referring each bookkeeping entry to its source in order to facilitate checking its accuracy.
2.
Computers.
a track of a particular item of output data back through the processing steps that produced it to the corresponding input data.
Origin
1965-70
British Dictionary definitions for
audit trail
audit trail
noun
1.
a record of all the transactions or data entries that a person or firm has carried out over a specific period