What is the purpose of the Principal Work Plane(s) in sketching?

The Principal Work Plane(s) serve as a foundational surface for creating and organizing views in engineering and design software. They play a crucial role in establishing the perspective from which components are drawn, which influences how the final product is visualized and developed. By setting a clear working plane, the designer has a reference that assists in maintaining alignment and consistency throughout various views, such as top, front, and side. This helps ensure that dimensions and annotations are accurately represented in relation to the selected working plane. A solid understanding of these principal work planes is essential for effective sketching and drafting within a digital environment.