What is required before system changes according to privacy guidelines?

A privacy impact assessment is essential before implementing system changes because it evaluates how these changes may affect the privacy of individuals' data. This assessment aims to identify potential privacy risks and ensure that appropriate measures are in place to safeguard personal information. Conducting a privacy impact assessment allows organizations to proactively address any potential compliance issues regarding privacy laws and regulations, ultimately enhancing data protection and fostering trust among stakeholders.

In contrast, while data entry approval, public relations campaigns, and budget approvals may be necessary in various contexts, they do not specifically address the privacy implications of system changes. A privacy impact assessment focuses specifically on assessing and mitigating risks associated with data privacy, making it a critical step in the process of managing system changes in compliance with privacy guidelines.