The invention provides a method of aggregate banding comprising defining an aggregate banding dimension for a first data source, the aggregate banding dimension including at least one aggregation variable, at least one banding variable, and at least one band based at least partly on the at least one banding variable; summarizing the data source based at least partly on the at least one aggregation variable, the summary including at least one distinct value of the at least one aggregation variable; and defining a mapping relationship of the at least one distinct value of the at least one aggregation variable to the or respective band(s) based on the value of the at least one banding variable. The invention further provides related systems and processor-executable instructions.