1st, states define the boundary through a treaty-like legal document in which actual points in the landscape or points of latitude and longitude are described. 2nd, cartographers delimit the boundary by drawing on a map. 3rd, if either or both of the states so desire, they can demarcate the boundary using visible means. 4th, the final step is to administrate the boundary--to determine how the boundary will be maintained and how goods and people will cross the boundary