This document discusses methods for grading sewing machine operators in the garment industry. Grading operators by skill level and the types of operations they can perform optimizes productivity and increases employee motivation. Operators are classified into categories like A, B, or C based on their experience level and the complexity of operations they can complete. Companies then set operator salaries based on their grading. The document outlines two common grading systems - one based on categorizing specific operations as A, B, or C level, and one based on the number and variety of operations an operator can perform along with their efficiency.