A hierarchy (from Greek: ἱεραρχία, hierarkhia, 'rule of a high priest', from hierarkhes, 'president of sacred rites') is an arrangement of items (objects...

Maslow's hierarchy of needs is a conceptualisation of the needs (or goals) that motivate human behaviour, which was proposed by the American psychologist...

field of ethology, a dominance hierarchy (formerly and colloquially called a pecking order) is a type of social hierarchy that arises when members of animal...

descriptive set theory, the analytical hierarchy is an extension of the arithmetical hierarchy. The analytical hierarchy of formulas includes formulas in the...

A settlement hierarchy is a way of arranging settlements into a hierarchy based upon their size. The term is used by landscape historians and in the National...

Hierarchy (Korean: 하이라키) is a 2024 South Korean teen romance television series written by Chu Hye-mi, directed by Bae Hyeon-jin, and starring Roh Jeong-eui...

A hierarchical organization or hierarchical organisation (see spelling differences) is an organizational structure where every entity in the organization...

A command hierarchy is a group of people who carry out orders based on others' authority within the group. In a military context, the chain of command...

In the angelology of different religions, a hierarchy of angels is a ranking system of angels. The higher ranking angels have greater power and authority...

connections, elemental forms, noble titles, or parallels to the angelic hierarchy; or by association with particular sins, diseases, and other calamities;...

Look up hierarchy in Wiktionary, the free dictionary. A hierarchy is an arrangement of units into related levels of different weights or ranks, meaning...

The Chomsky hierarchy in the fields of formal language theory, computer science, and linguistics, is a containment hierarchy of classes of formal grammars...

§ Brackets and transcription delimiters. A sonority hierarchy or sonority scale is a hierarchical ranking of speech sounds (or phones). Sonority is loosely...

Hierarchy theory is a means of studying ecological systems in which the relationship between all of the components is of great complexity. Hierarchy theory...

sets of reals. Sets are compared by continuous reductions. The Wadge hierarchy is the structure of Wadge degrees. These concepts are named after William...

In a hierarchy or tree structure of any kind, a superior is an individual or position at a higher level in the hierarchy than another (a "subordinate"...

In telecommunications, a digital multiplex hierarchy is a hierarchy consisting of an ordered repetition of tandem digital multiplexers that produce signals...

slightly different hierarchies. For instance, there is one hierarchy which is primarily used in theoretical phonology, while a similar hierarchy is used in discourse...

In theoretical physics, the hierarchy problem is the problem concerning the large discrepancy between aspects of the weak force and gravity. There is...

In mathematical logic, the arithmetical hierarchy, arithmetic hierarchy or Kleene–Mostowski hierarchy (after mathematicians Stephen Cole Kleene and Andrzej...

The hierarchy of the Catholic Church consists of its bishops, priests, and deacons. In the ecclesiological sense of the term, "hierarchy" strictly means...

The Filesystem Hierarchy Standard (FHS) is a reference describing the conventions used for the layout of Unix-like systems. It has been made popular by...

Religious hierarchy may refer to: Hierarchical organization, hierarchical structure as applied to all organizations, including some religions Religious...

A moral hierarchy is a hierarchy by which actions are ranked by their morality, with respect to a moral code. It also refers to a relationship – such as...

{{{annotations}}} {{{annotations}}} A road hierarchy is a system for categorizing roads. Road networks worldwide are typically organized according to...

A class hierarchy or inheritance tree in computer science is a classification of object types, denoting objects as the instantiations of classes (class...

theory, the exponential hierarchy is a hierarchy of complexity classes that is an exponential time analogue of the polynomial hierarchy. As elsewhere in complexity...

boolean hierarchy is the hierarchy of boolean combinations (intersection, union and complementation) of NP sets. Equivalently, the boolean hierarchy can be...

In linguistic typology, the case hierarchy denotes an order of grammatical cases. If a language has a particular case, it also has all cases lower than...

set theory and mathematical logic, the Lévy hierarchy, introduced by Azriel Lévy in 1965, is a hierarchy of formulas in the formal language of the Zermelo–Fraenkel...