Data policies can help you prove to auditors and internal risk partners that the data collected and published into the Identity Governance catalog is complete and accurate. Having data policies in place can promote confidence in your data collection processes and help you show others that your processes and configuration comply with a set of standards, reducing the need for further proof unless your process or configuration changes.
When you have defined data policies in place, you can compare collection and publication details from the same data source at two different collection or publication times. Identity Governance uses the defined data policies to produce the comparison details. For more information, see Comparing Collections and Publications.