Methods, systems, and computer program products for editing configuration data such that alterations in one representation of the configuration data are reflected in one or more other representations of the configuration data. The altered configuration data may take effect without having to restart a corresponding program module. Multiple alterations to the configuration data may be consolidated. A differencing operation may be used to identify an altered portion of the configuration data. For one or more altered portions, an "updategram" may be generated and used to update a multiple program modules at various interconnected computer systems. A history of alterations to configuration data also may be maintained, making it possible to revert to an earlier version of the configuration data. Erroneous data may be ignored. Access to updated representations of the configuration data may be provided at a configuration management interface.