What is Audit Trail :
An audit trail or audit log is a security-relevant chronological record, set of records, or destination and source of records that provide documentary evidence of the sequence of activities that have affected at any time a specific operation, procedure, or event.
Audit trail means a secure, computer-generated, time-stamped electronic record that allows for reconstruction of the history of events relating to the creation, modification, or deletion of an electronic record.
For example, the audit trail for a high performance liquid chromatography (HPLC) run should include the user name, date/time of the run, the integration parameters used, and details of a reprocessing, if any.
Audit trail should be available in analytical instruments like High performance liquid chromatography (HPLC) , Gas chromatography (GC), Infrared Spectrophotometer, Ultra Violet Spectrophotometer, Water By KF etc.
The review of Audit Trails in Laboratory Systems may include the following verification but not limited to :
For more details pl refer Requirement of Audit trail in Pharmaceuticals