1. A computer-implemented method for visualizing data, comprising: forming a plurality of hierarchically related graphs having a common time-series axis in accordance with a user selection of an element in a data hierarchy; displaying a user interface that includes the plurality of hierarchically related graphs in a linear arrangement, such that shared values on the common time-series axis align for each graph, wherein each graph has a parent or child relationship with each adjacent graph; and automatically updating the plurality of hierarchically related graphs in accordance with a user selection of an element in a data hierarchy.