In the standard system, SAP delivers the SAP Reference IMG with each R/3 System. The SAP Reference IMG contains the full functionality of all possible Customizing settings across all countries and application components. It is structured hierarchically according to the R/3 component hierarchy. All Customizing activities are assigned to one or more components. You choose the functions that you want to implement in your company from the R/3 application components. This results in individual Customizing projects for implementing the R/3 System in your company.