Most ECAD software packages have very high information density - look at Altium Designer, Mentor XPedition, OrCAD Cadence, Proteus PCB, Eagle, or KiCAD for examples.
Most ECAD software packages have very high information density - look at Altium Designer, Mentor XPedition, OrCAD Cadence, Proteus PCB, Eagle, or KiCAD for examples.