The data privacy manager is the best person to an application system used to process employee personal data, because they are responsible for ensuring that the organization complies with the applicable data protection laws and regulations, and that the personal data of employees are collected, stored, processed, and disposed of in a secure and ethical manner. The data privacy manager is also responsible for establishing and maintaining the data privacy policies, procedures, and controls, and for conducting data privacy impact assessments and audits. The compliance manager, the system administrator, and the human resources (HR) manager are all involved in the of the application system, but they are not the best person to it, as they do not have the primary accountability and expertise for data privacy. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.2, page 158