Hierarchies have their own special vocabulary. These terms are easiest to understand when a hierarchy is diagrammed … See more

Possibly the first use of the English word hierarchy cited by the Oxford English Dictionary was in 1881, when it was used in reference to the three orders of three angels as depicted by Pseudo-Dionysius the Areopa… See more

A hierarchy is typically depicted as a pyramid, where the height of a level represents that level's status and width of a level represents the quantity of items at that level relative to the whole. For example, the few … See more

In the design field, mainly graphic design, successful layouts and formatting of the content on documents are heavily dependent on the rules of visual hierarchy. Visual hierarchy is also important for proper organizatio… See more

In plain English, a hierarchy can be thought of as a set in which:
1. No element is superior to itself, and
2. One element, the (apex or hierarch), is superior to all of the other elements in the set.… See more

Mathematically, in its most general form, a hierarchy is a partially ordered set or poset. The system in this case is the entire poset, which is constituted of elements. Within this system, each element shares a particular unambiguo… See more