4. The method of claim 3 , wherein the ability of the data source to provide data corresponding to the one or more query dimensions is determined based on whether the data source includes one or more source dimensions that are related to the one or more query dimensions.
4. The method of claim 3 , wherein the ability of the data source to provide data corresponding to the one or more query dimensions is determined based on whether the data source includes one or more source dimensions that are related to the one or more query dimensions. 5. The method of claim 4 , wherein, if the data source includes one or more source dimensions that are related to the one or more query dimensions, the data source is assigned a score that is higher than the scores assigned to the data sources that do not include one or more source dimensions that are related to the one or more query dimensions.