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

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...

Maslow's hierarchy of needs is an idea in psychology proposed by American psychologist Abraham Maslow in his 1943 paper "A Theory of Human Motivation"...

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...

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...

The Chomsky hierarchy (infrequently referred to as the Chomsky–Schützenberger hierarchy) in the fields of formal language theory, computer science, and...

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

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

Catholic-Hierarchy.org is an online database of bishops and dioceses of the Catholic Church and the 23 Eastern Catholic Churches that are in full communion...

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

statistics, hierarchical clustering (also called hierarchical cluster analysis or HCA) is a method of cluster analysis that seeks to build a hierarchy of clusters...

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

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

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...

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

In the theory of decision making, the analytic hierarchy process (AHP), also analytical hierarchy process, is a structured technique for organizing and...

pyramid, also known variously as the DIKW hierarchy, wisdom hierarchy, knowledge hierarchy, information hierarchy, information pyramid, and the data pyramid...

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...

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

road hierarchy categorizes roads according to their functions and capacities. While sources differ on the exact nomenclature, the basic hierarchy comprises...

Hierarchical classification is a system of grouping things according to a hierarchy. In the field of machine learning, hierarchical classification is...

In computer organisation, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and...

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...

Celestial hierarchy can refer to: Celestial bureaucracy, in Chinese mythology De Coelesti Hierarchia ("On the Celestial Hierarchy"), a 5th century work...

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

In exposure therapy, an exposure hierarchy is developed to help clients confront their feared objects and situations in a manner that is systematic and...

Hierarchy (Russian: Белокриницкая иерархия, Belokrinitskoe Soglasiye, Russian: Белокриницкое согласие) is the first full and stable church hierarchy created...

A reverse hierarchy (or inverted pyramid) is a conceptual organizational structure that attempts to "invert" or otherwise "reverse" the classical pyramid...

organization tends to use hierarchical forms (see Modern hierarchy for terminology and approximate troop strength per hierarchical unit). In some countries...

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"...