Constraint Definition and Management in Schematic Capture
Rules to manage the manufacturing standards of the board and the routing of high speed signals avoiding interference and/or crosstalk in the layout design are fundamental to the success of the final board assembly. Constraint management provides a common, integrated constraint definition environment for both schematic capture and layout, and enables you to easily compare the PCB layout “actual” routed values against the defined rule set. Learn more and try PADS for yourself: http://www.pads.com/?cmpid=9048.