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Dependency, dependent or depend may refer to:


Computer science

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Dependency (computer science) In software engineering, coupling is the degree of interdependence between software modules; a measure of how closely connected two routines or modules are; the strength of the relationships between modules. Coupling is usually contrasted with ...
or coupling, a state in which one object uses a function of another object *
Data dependency A data dependency in computer science is a situation in which a program statement (instruction) refers to the data of a preceding statement. In compiler theory, the technique used to discover data dependencies among statements (or instructions) is c ...
, which describes a dependence relation between statements in a program *
Dependence analysis In compiler theory, dependence analysis produces execution-order constraints between statements/instructions. Broadly speaking, a statement ''S2'' depends on ''S1'' if ''S1'' must be executed before ''S2''. Broadly, there are two classes of depen ...
, in compiler theory *
Dependency (UML) In the Unified Modeling Language (UML), a Dependency is a relationship that shows that an element, or set of elements, requires other model elements for their specification or implementation.OMG Unified Modeling Language, Superstructure, Version 2. ...
, a relationship between one element in the Unified Modeling Language *
Dependency relation In computer science, in particular in concurrency theory, a dependency relation is a binary relation on a finite domain \Sigma, symmetric, and reflexive; i.e. a finite tolerance relation. That is, it is a finite set of ordered pairs D, such t ...
, a type of binary relation in mathematics and computer science. *
Functional dependency In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation from a database. In other words, a functional dependency is a constraint between two attributes in a relation. Given a relation '' ...
, a relationship between database attributes allowing normalization. *
Dependent type In computer science and logic, a dependent type is a type whose definition depends on a value. It is an overlapping feature of type theory and type systems. In intuitionistic type theory, dependent types are used to encode logic's quantifiers lik ...
, in computer science and logic, a type that depends on a value *
Hidden dependency Cognitive dimensions or cognitive dimensions of notations are design principles for notations, user interfaces and programming languages, described by researcher Thomas R.G. Green and further researched with Marian Petre. The dimensions can be ...
, a relation in which a change in many areas of a program produces unexpected side-effects * Library dependency, a relationship described in and managed by a software dependency manager tool to mitigate
dependency hell Dependency hell is a colloquial term for the frustration of some software users who have installed software packages which have dependencies on specific versions of other software packages. The dependency issue arises when several packages have d ...


Economics

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Dependant A dependant is a person who relies on another as a primary source of income. A common-law spouse who is financially supported by their partner may also be included in this definition. In some jurisdictions, supporting a dependant may enabl ...
(British English) (Dependent - American English), a person who depends on another as a primary source of income *
Dependency ratio The dependency ratio is an age-population ratio of those typically not in the labor force (the ''dependent'' part ages 0 to 14 and 65+) and those typically in the labor force (the ''productive'' part ages 15 to 64). It is used to measure the press ...
, in economics, the ratio of the economically dependent part of the economy to the productive part *
Dependency theory Dependency theory is the notion that resources flow from a "periphery" of poor and underdeveloped states to a "core" of wealthy states, enriching the latter at the expense of the former. A central contention of dependency theory is that poor s ...
, an economic worldview that posits that resources flow from poor states to wealthy states


Linguistics

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Dependent and independent verb forms In the Goidelic languages, dependent and independent verb forms are distinct verb forms; each tense of each verb exists in both forms. Verbs are often preceded by a particle which marks negation, or a question, or has some other force. The dependent ...
, distinct verb forms in Goidelic languages used with or without a preceding particle *
Dependency grammar Dependency grammar (DG) is a class of modern grammatical theories that are all based on the dependency relation (as opposed to the ''constituency relation'' of phrase structure) and that can be traced back primarily to the work of Lucien TesniĂ ...
is based on the ''dependency relation'' between the lexemes of a sentence *
Dependent clause A subordinate clause, dependent clause, subclause, or embedded clause is a clause that is embedded within a complex sentence. For instance, in the English sentence "I know that Bette is a dolphin", the clause "that Bette is a dolphin" occurs as t ...


Mathematics

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Dependency relation In computer science, in particular in concurrency theory, a dependency relation is a binary relation on a finite domain \Sigma, symmetric, and reflexive; i.e. a finite tolerance relation. That is, it is a finite set of ordered pairs D, such t ...
, a type of binary relation in mathematics and computer science. *
Dependent and independent variables Dependent and independent variables are variables in mathematical modeling, statistical modeling and experimental sciences. Dependent variables receive this name because, in an experiment, their values are studied under the supposition or demand ...
, in mathematics, the variable that depends on the independent variable * The absence of
independence (probability theory) Independence is a fundamental notion in probability theory, as in statistics and the theory of stochastic processes. Two events are independent, statistically independent, or stochastically independent if, informally speaking, the occurrence of ...
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Tail dependence In probability theory, the tail dependence of a pair of random variables is a measure of their comovements in the tails of the distributions. The concept is used in extreme value theory. Random variables that appear to exhibit no correlation can sh ...
, from probability theory **
Serial dependence Autocorrelation, sometimes known as serial correlation in the discrete time case, is the correlation of a signal with a delayed copy of itself as a function of delay. Informally, it is the similarity between observations of a random variable a ...
, in statistics **
Correlation and dependence In statistics, correlation or dependence is any statistical relationship, whether causal or not, between two random variables or bivariate data. Although in the broadest sense, "correlation" may indicate any type of association, in statistics ...
**
Mean dependence In probability theory, a random variable Y is said to be mean independent of random variable X if and only if its conditional mean E(Y , X = x) equals its (unconditional) mean E(Y) for all x such that the probability density/mass of X at x, f_X(x) ...


Medicine and psychology

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Codependence In sociology, codependency is a theory that attempts to explain imbalanced relationships where one person enables another person's self-destructive behavior such as addiction, poor mental health, immaturity, irresponsibility, or under-achiev ...
, a pattern of detrimental behavioral interactions within a dysfunctional relationship *
Dependency need Dependency need is "the vital, originally infantile needs for mothering, love, affection, shelter, protection, security, food, and warmth." (Segen, 1992) A dependency need is thought to be characterized by two components: (1) It is a real need of ...
, the real need of the organism, or something that individuals cannot provide for themselves *
Dependent personality disorder Dependent personality disorder (DPD) is characterized by a pervasive psychological dependence on other people. This personality disorder is a long-term condition in which people depend on others to meet their emotional and physical needs, with on ...
, a personality disorder characterized by a pervasive psychological dependence on other people *
Substance dependence Substance dependence, also known as drug dependence, is a biopsychological situation whereby an individual's functionality is dependent on the necessitated re-consumption of a psychoactive substance because of an adaptive state that has develope ...
, an adaptive state associated with a withdrawal syndrome upon cessation of repeated exposure to a stimulus (e.g., drug intake) **
Physical dependence Physical dependence is a physical condition caused by chronic use of a tolerance-forming drug, in which abrupt or gradual drug withdrawal causes unpleasant physical symptoms. Physical dependence can develop from low-dose therapeutic use of certai ...
, dependence that involves persistent physical–somatic withdrawal symptoms (e.g., fatigue and delirium tremens) **
Psychological dependence Psychological dependence is a cognitive disorder that involves emotional–motivational withdrawal symptoms—e.g. anxiety and anhedonia—upon cessation of prolonged drug abuse or certain repetitive behaviors. It develops through frequent exp ...
, dependence that involves emotional–motivational withdrawal symptoms (e.g., dysphoria and anhedonia) **
Alcohol dependence Alcohol dependence is a previous (DSM-IV and ICD-10) psychiatric diagnosis in which an individual is physically or psychologically dependent upon alcohol (also chemically known as ethanol). In 2013, it was reclassified as alcohol use disorde ...
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Amphetamine dependence Amphetamine dependence refers to a state of psychological dependence on a drug in the amphetamine class. Stimulants such as amphetamines and cocaine do not cause physical dependence. Signs of amphetamine intoxication manifest themselves in euphor ...
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Barbiturate dependence Barbiturate dependence develops with regular use of barbiturates. This in turn may lead to a need for increasing doses of the drug to get the original desired pharmacological or therapeutic effect. Barbiturate use can lead to both addiction and phy ...
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Benzodiazepine dependence Benzodiazepine dependence defines a situation in which one has developed one or more of either tolerance, withdrawal symptoms, drug seeking behaviors, such as continued use despite harmful effects, and maladaptive pattern of substance use, accord ...
** Caffeine dependence ** Cannabis dependence ** Cocaine dependence **
Opioid dependence Opioid use disorder (OUD) is a substance use disorder characterized by cravings for opioids, continued use despite physical and/or psychological deterioration, increased tolerance with use, and withdrawal symptoms after discontinuing opioids. Op ...
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Tanning dependence Tanning dependence or tanorexia (a portmanteau of ''tanning'' and ''anorexia'') is a syndrome where an individual appears to have a physical or psychological dependence on sunbathing or the use of ultraviolet (UV) tanning beds to darken the comp ...


Political science

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Dependent territory A dependent territory, dependent area, or dependency (sometimes referred as an external territory) is a territory that does not possess full political independence or sovereignty as a sovereign state, yet remains politically outside the controlli ...
, a classification of territory, especially a region that is not a sovereign state but a possession of same ** Crown Dependencies, three specific dependencies of the United Kingdom: the Bailiwick of Guernsey, the Bailiwick of Jersey, and the Isle of Man **
Dependencies of Norway Norway has three dependent territories ( no, biland), all uninhabited and located in the Southern Hemisphere. Bouvet Island (BouvetĂžya) is a sub-Antarctic island in the South Atlantic Ocean. Queen Maud Land is a sector of Antarctica which spans ...
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Ross Dependency The Ross Dependency is a region of Antarctica defined by a sector originating at the South Pole, passing along longitudes 160° east to 150° west, and terminating at latitude 60° south. It is claimed by New Zealand, a claim accepted only b ...
, New Zealand Antarctic claim


Music

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Dependent (record label) A dependant is a person who relies on another as a primary source of income. A common-law spouse who is financially supported by their partner may also be included in this definition. In some jurisdictions, supporting a dependant may enabl ...
, a German independent record label that focuses on aggrotech, electro-industrial and futurepop music *
Dependent Music Dependent Music was a Canadian independent record label, owned and operated by the artists that were a part of the collective. Dependent Music was formed by Brian Borcherdt in Yarmouth, Nova Scotia in 1994. Artists who have released material ...
, an independent Canadian record label, owned and operated by the artists that were a part of the collective * Dependency (band), an American Christian hardcore band


Philosophy

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Dependent A dependant is a person who relies on another as a primary source of income. A common-law spouse who is financially supported by their partner may also be included in this definition. In some jurisdictions, supporting a dependant may enabl ...
(origination), in Buddhism, the idea that the existence of everything is conditional and dependent on a cause, and that nothing happens fortuitously or by chance


Other uses

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Depend (undergarment) Depend is a brand of absorbent, disposable underwear and undergarments for people with urinary or fecal incontinence. It is a Kimberly-Clark brand, and positions its products as an alternative to typical adult diapers. Depend is the dominant brand ...
, a brand of absorbent, disposable underwear for adults *
Dependency (project management) In a project network, a dependency is a link among a project's terminal elements. The A Guide to the Project Management Body of Knowledge (PMBOK Guide) does not define the term dependency, but refers for this term to a logical relationship, whic ...
, a link amongst a project's terminal elements *
Dependency (religion) A dependency, among monastic orders, denotes the relation of a monastic community with a newer community which it has founded elsewhere. The relationship is that of the founding abbey or conventual priory, termed the motherhouse, with a monastery ...
, the relation of a monastic community with a newer community {{Disambiguation