Learn in the textbookThe System Audit Process (From Planning to Reporting and Follow-up)
DefinitionA system audit plan (システム監査計画) sets out the audit's purpose, scope, schedule, assigned staff and so on before the investigation begins.
ExplanationAn audit starts with drawing up the plan, and the investigation that follows proceeds according to it. Carrying out the audit can be split, for example, into the preliminary investigation, which gives an overview of the target, the main investigation, which gathers evidence in earnest, and the evaluation and conclusion, which settles the opinion from those results.
AnalogyIt is like a home inspection company that settles which rooms to check and which day to visit before showing up. With the scope and order fixed, you are less likely to miss anything or do the same work twice.
Memory hookTo plan is to map things out in advance: before moving, you map out where to look and how far.