1. A computer program tangibly stored on a computer-readable medium and operable to cause a computer to enable a user interface for encoding a graphical representation of a point of view, the computer program comprising instructions to: receive input from a user defining the graphical representation; manipulate the graphical representation to obtain a hierarchy based on the point of view; encode a structure of the hierarchy into data structures; obtain significance and interest relations for components of the hierarchy based on the structure of the hierarchy; apply the significance and interest relations to the data structures to obtain connectivity data; determine confidence levels for data sets related to the components of the hierarchy based on the connectivity data; and present the confidence levels and data sets to the user in the context of the hierarchy.