This document describes creating a data flow diagram (DFD) for a garment management system. It outlines the key processes which include user registration, order dealing, and quality checking. The DFD is broken down from a high-level context diagram (Level-0) to a more detailed level-1 diagram. The level-1 diagram shows 3 sub-processes that represent the major elements of receiving orders, distributing tasks to employees, and quality control checks.