The grouping of the twelve Dragonborn Paths is known as The Way.
All Paths within the Way have many similar factors:
A High Elder who leads it, with Masters beneath
A number of ranks - differing from Path to Path
A physical and a spiritual component
Years of study
Regardless of which Path taken, a Dragonborn can reach his Zennith, where a coming of age, or realisation is made, and the world appears as if through new eyes. This does not correlate to rank, and can happen at any time.
Whilst Paths are not tightly linked, a high council does exist, made up of the twelve High Elders, who meet bi-annually to discuss the state of Khorvaire, and the Dragonborns place within it.
The thirteenth order, the Path of Fire, has been formally expelled, and is not recognised by the other twelve. This expulsion occurred due to the members allying themselves with the Black Dragon, Rhasaak, the voice of the Overlord, Masvirik.