A method of sharing data includes storing a central data object in the central computer system, the data object including an attribute and a plurality of values for the attribute and creating a first mapping between the values of the attribute stored in the central data object and values of an attribute for a first client data object stored in a client computer system. The first mapping is stored, and the first mapping is used to selectively extract first data from the central data object for distribution to the first client data object. The extracted data is distributed from the central computer system to one or more client systems.