1. A system for managing core enterprise reference data associated with an enterprise, comprising: a centralized master repository tangibly embodied on a computer-readable medium and comprising the core enterprise reference data, the core enterprise reference data associated with a plurality of data schemas, each data schema comprising one or more data models for core enterprise reference data, each data model comprising one or more fields; and a data management services framework tangibly embodied on a computer-readable medium and configured to provide services that manage the core enterprise reference data in the centralized master repository, the data management services framework including a data management services framework subsystem configured to provide data access services between user interface levels, data management rules, and the centralized master repository wherein at least one of the data management rules comprises a validation rule that automatically selects a level of validation based on one or more characteristics of inbound data.