Parts are most useful in large complex drawings. Therefore, in your first few weeks using ME10 you may not want to complicate the drawing process by using parts. However, as you become a proficient user, you will begin to see how the use of parts will simplify complex drawings and increase your productivity. Using parts in a drawing is a matter of personal choice; different users will use a different parts structure on the same drawing.

With these points in mind, now consider some ideas and definitions of parts.