The term DATA PLAN DATUM can be broken down into three parts: DATA, PLAN, and DATUM. DATA is a collection of facts or information that can be used to make decisions or draw conclusions. PLAN is an organized set of actions or steps that are intended to achieve a specific goal. DATUM is a single piece of information or fact. USAGE is the act of using something, typically for a particular purpose. In this case, USAGE refers to the use of DATA, plans, and datums in order to achieve a specific goal.