A computer-implemented system of centrally managing core enterprise reference data of an enterprise that includes one or more processing units and one or more memory units, the system includes a storage medium having stored therein a process layer that implements one or more business configuration processes of one or more enterprise-level business workflows. The system further includes a storage medium having stored therein a service layer underlying the process layer that provides services that enable process tasks for the one or more business configuration processes and a storage medium having stored therein a data layer underlying the service layer and storing in a repository, core enterprise reference data that is received from one or more external data sources using a staging strategy that reduces data transfer time between the core enterprise reference data repository and the one or more external data sources.