A Written Constitution:Since it is an agreement, it must be in the written form so that there are no doubts about the powers and functions of each set of government. A written thing is generally very clear.Rigid Constitution: It means that there should be a definite and difficult method of amending the constitution. In this way it will remain supreme.Sovereignty of the Amending Body: Since both the federal and the provincial government derive their powers from the constitution, neither can be sovereign. So sovereignty lies with the body which has the power to amend the constitution.Distribution of PowersIn federalism the powers are divided between the federal and the provincial governments. There is no uniform method for the distribution of powers. The general and the basic principle is that matters of local importance are given to the provinces and that of national importance to the federal government. Besides this there are the following three methods of distribution of powers commonly used in the world today: