Hierarchy

thumb|right|The mediaeval scala naturae as a staircase, implying the orthogenesis|possibility of progress: [[Ramon Llull's Ladder of Ascent and Descent of the Mind, 1305]]

right|thumb|280px|Generalized scheme of taxonomy

hierarchy of complex biological structures and systems that define life using a reductionistic approach

concept associated with Aristotelian philosophy in which all forms of life on the planet exist in ranked order, from the most to the least important, in a "ladder of life"

study of type systems in mathematical logic and computer science

type of social hierarchy

strategies of information processing and ordering of knowledge

computer architecture that classifies memory/storage into a hierarchy based on response time

set of semantic relations involving the type-of property

hierarchy of decreasing favorability of actions to reduce resource waste and protect the natural environment

Insubordination is the act of willfully disobeying a lawful order of one's superior. It is generally a punishable offense in hierarchical organizations such as the armed forces, which depend on people lower in the chain of command obeying orders.

In mathematics, specifically category theory, a subcategory of a category \mathcal{C} is a category \mathcal{S} whose objects are objects in \mathcal{C} and whose morphisms are morphisms in \mathcal{C} with the same identities and composition of morphisms. Intuitively, a subcategory of \mathcal{C} is a category obtained from \mathcal{C} by "removing" some of its objects and arrows.

hierarchy which classifies certain sets based on the complexity of formulas that define them

A heterarchy is a system of organization where the elements of the organization are unranked (non-hierarchical) or where they possess the potential to be ranked a number of different ways. Definitions of the term vary among the disciplines: in social and information sciences, heterarchies are networks of elements in which each element shares the same "horizontal" position of power and authority, each playing a theoretically equal role. In biological taxonomy, however, the requisite features of heterarchy involve, for example, a species sharing, with a species in a different family, a common an

Seniority is the state of being older or placed in a higher position of status relative to another individual, group, or organization. For example, one employee may be senior to another either by role or rank (such as a CEO vice a manager), or by having more years served within the organization (such as one peer being accorded greater status over another due to amount of time in). The term "seniority" can apply to either concept or both concurrently.

organizational structure where every entity in the organization, except one, is subordinate to a single other entity

ranks of different genres in an art form in terms of their prestige and cultural value

cyclic structure that goes through several levels in a hierarchical system.

religious oath made by some Catholics

hierarchy of modes of transport prioritising sustainable transport modes, that is the order of priority in movements

overview about the hierarchy of bounding volume hierarchy

extension of the arithmetical hierarchy

A meronomy is a hierarchical taxonomy that deals with part–whole relationships. For example, a car has parts that include engine, body and wheels; and the body has parts that include doors and windows.

individual or position at a higher level in the hierarchy than another in hierarchy or tree structure