The document provides an overview of key concepts in SAP's Overhead Cost Management (OCM) module, including:
1) OCM helps plan, allocate, control, and monitor overhead costs by developing standards to control costs and value internal activities using cost centers, internal orders, and other tools.
2) Cost centers analyze where overhead occurs and costs are assigned to sub-areas where they originated, while internal orders collect and analyze costs of internal jobs and tasks.
3) Master data like cost elements, cost centers, activity types, and internal orders are used throughout the OCM processes of planning, actual posting, period closing, and reporting.