The document describes an Activity Based Costing (ABC) model called PARAS-Integrated ABC Module. The ABC model identifies activities in an organization and assigns the costs of activity resources to products and services based on actual consumption. It presents an ABC flowchart showing how material pack costs, service costs, and apportioned overhead costs are assigned to services and ultimately to customers. The document explains that hospitals need ABC to understand costs in detail, assign human resource and other complex costs, and improve billing processes.