http://avalon.law.yale.edu/18th_century/prel1782.asp
The Preliminary Articles of Peace at the URL above appear to be identical to the peace treaty usually said to be dated 1783 and ratified in 1784.
Since they are verbatim the same, what is the difference between the "Prelimary Articles" and the "Treaty"? Why is one document considered merely preliminary rather being called a proposed treaty to be submitted for ratification by both countries?