What is the function of an assessment plan?

The function of an assessment plan is to outline the scope, methods, and objectives of the security assessment. This plan serves as a comprehensive guide for conducting a security assessment, ensuring that all necessary areas are covered and that the assessment aligns with the organization's security objectives. By clearly defining the scope, the plan identifies what systems, processes, or controls will be examined, thereby helping to focus the assessment on relevant security areas. Additionally, specifying the methods provides clarity on how the assessment will be conducted—whether through interviews, document reviews, or technical testing, for example. Lastly, establishing the objectives clarifies what the assessment intends to achieve, such as identifying vulnerabilities or evaluating compliance with regulatory standards, ensuring that everyone involved is aligned on the goals of the assessment.