Organizations
If you are explaining an organization you may again use the chronological order and show how the organization came about as it is, how for example the Federal Reserve Board was appointed for certain reasons each of which has its correspondent in the constitution of the board. Such a method is useful in explaining the feudal system, the college fraternity, the national convention of a political party. Or, finally, you can state the root idea, sometimes appearing as purpose or significance, and then expand it. A labor union, thus treated, is a body of men who individually have slight power of resisting organized capital, but can collectively obtain their rights and demands.