This step is also critical to a successful data analytics program, just as any other audit evidence. That is, the IT auditor needs sufficient assurance as to the data’s veracity and reliability before performing tests and procedures. That might include understanding, or even testing, controls on the TPS or the IT function (e.g., IT general controls). The goal is to ensure that the data acquired are the precise data on the TPS and they are sufficient for performing the testing required.