16. An apparatus comprising: a processing device having a processor coupled to a memory and configured for implementation in an information management system in which multiple models are utilized to characterize stored information; wherein the processing device further comprises: a query processing module configured to receive a query directed to the stored information and to determine at least one contextual indicator from the query; and a model transformation module configured to apply said at least one contextual indicator to a meta-model including a plurality of linkages between attributes of respective ones of the multiple models, each of said linkages comprising one or more associated contextual properties, and to generate a transformed meta-model specifying an authoritative policy result for processing the query responsive to said at least one contextual indicator; wherein the query is processed by the query processing module in accordance with the authoritative policy result specified in the transformed meta-model for the at least one contextual indicator; wherein different contextual indicators are associated with different transformed meta-models which specify different authoritative policy results to be applied when processing a given query; and wherein a given one of the plurality of linkages of the meta-model has two or more policies associated therewith and the transformed meta-model specifies a given one of the two or more policies as the authoritative policy result.
16. An apparatus comprising: a processing device having a processor coupled to a memory and configured for implementation in an information management system in which multiple models are utilized to characterize stored information; wherein the processing device further comprises: a query processing module configured to receive a query directed to the stored information and to determine at least one contextual indicator from the query; and a model transformation module configured to apply said at least one contextual indicator to a meta-model including a plurality of linkages between attributes of respective ones of the multiple models, each of said linkages comprising one or more associated contextual properties, and to generate a transformed meta-model specifying an authoritative policy result for processing the query responsive to said at least one contextual indicator; wherein the query is processed by the query processing module in accordance with the authoritative policy result specified in the transformed meta-model for the at least one contextual indicator; wherein different contextual indicators are associated with different transformed meta-models which specify different authoritative policy results to be applied when processing a given query; and wherein a given one of the plurality of linkages of the meta-model has two or more policies associated therewith and the transformed meta-model specifies a given one of the two or more policies as the authoritative policy result. 17. The apparatus of claim 16 wherein the processing device comprises an information manager configured for communication with one or more servers of the information management system.