What does it mean to create pattern markings on the fabric before sewing?

Creating pattern markings on fabric before sewing primarily serves as a guide for construction. These markings, which can include darts, notches, and seam lines, provide crucial reference points during the sewing process. For example, notches help align pieces correctly, while markings for darts indicate where to fold and sew fabric for shaping. This guidance ensures accuracy in assembly and helps maintain the intended design and fit of the garment. Overall, these markings facilitate a smoother sewing process and contribute significantly to the quality of the finished product.