1. A method for identifying sections of an existing schematic that are consistent with design practices, the method comprising the steps of: providing a template set, each template specifying a sub-set of components and relationships that are consistent with design practices; and using a processor for examining the existing schematic to identify sections of the existing schematic that are inconsistent with the design practices specified in the template set; wherein the section that is inconsistent with the design practices is an inconsistent section, the method further including the step of, when a section of the existing schematic is inconsistent with the design practices specified in the template set, performing a function on the existing schematic; and wherein the function includes visually displaying the inconsistent section in a distinguishing manner.