Aspect
This is the direction your plot faces, North/South/East/West.
A vegetable patch likes a sunny spot, so if you can, put it somewhere that is not shaded, facing south so it gets as much sun as possible. If you plant in rows, should your row go north/south or east/west? This is less important than you might think, it is the height of your plants you should consider. You do not want tall plants to shade short plants. So, a row of
beans/peas should be planted and staked in a north/south line, so plants each side of the stake will get sun.
Shorter plants can go east/west or north/south, but if the bed is behind
beans, make your rows of smaller veg run in the opposite direction to taller.