16. The method of claim 15 further comprising: displaying, on the graphical user interface, multiple panels and an active panel data item in an active panel of the multiple panels; and displaying in other panels of the multiple panels, simultaneously with the display of the active panel data item, entity tables having data items that have a relationship to the active panel data item, wherein respective relationships between the active panel data item and respective data items displayed in the other panels are each one of: the first relationship type, the second relationship type, the third relationship type, and the fourth relationship type.
16. The method of claim 15 further comprising: displaying, on the graphical user interface, multiple panels and an active panel data item in an active panel of the multiple panels; and displaying in other panels of the multiple panels, simultaneously with the display of the active panel data item, entity tables having data items that have a relationship to the active panel data item, wherein respective relationships between the active panel data item and respective data items displayed in the other panels are each one of: the first relationship type, the second relationship type, the third relationship type, and the fourth relationship type. 17. The method of claim 16 further comprising displaying multiple indicia on the graphical user interface, wherein each of the multiple indicia respectively conveys to the user one of: the first relationship type, the second relationship type, the third relationship type and the fourth relationship type.