MIL-STD-31000B - The practice of using 3D data sets containing the exact solid representation, associated 3D geometry and 3D annotations of a products dimensions, tolerances, materials, finishes and other notes to specify a complete product definition. Also referred to as MBD or Model-Based Definition.(See ASME Y14.41)
MBE Maturity Index - A product definition founded on a 3D model that requires semantic PMI and attributes.