This document provides information on pattern grading. It discusses developing grading specifications, setting up a base pattern, and grading patterns. Some key points include: Grading is a method of enlarging or reducing a pattern proportionately to different sizes. It must be done accurately to avoid issues when producing multiple sizes. Common grading methods include cut-and-spread, pattern shifting, and computer grading. Developing grading specifications involves preparing work stations, selecting grading tools, and establishing a grading system. A grading system translates body changes between sizes to corresponding pattern piece changes. Setting up a base pattern involves selecting a basic style and determining grade distribution points. Cardinal points specify dimensional changes on pattern perimeters and curves. Patterns