CAD Standards - Layer Name Creation

[dave]

I firmly believe in the NCS and the AIA systems of layer name creationYour creation of layer names should follow the NCS layer naming recommendations. The 1-4-4-4-1 format shown in the AIA guideline should be followed.Example:* A-WALL-FULL-DEMO-MThe first place is a Discipline Designator letter. By default it is one character long. Two characters [...]

More... (http://www.caddmanager.com/CMB/2009/08/cad-standards-layer-name-creation/)