One-to-one (other)
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One-to-one or one to one may refer to:


Mathematics and communication

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One-to-one function In mathematics, an injective function (also known as injection, or one-to-one function ) is a function that maps distinct elements of its domain to distinct elements of its codomain; that is, implies (equivalently by contraposition, impl ...
, also called an injective function *
One-to-one correspondence In mathematics, a bijection, bijective function, or one-to-one correspondence is a function between two sets such that each element of the second set (the codomain) is the image of exactly one element of the first set (the domain). Equivale ...
, also called a bijective function *
One-to-one (communication) In telecommunications, a point-to-point connection refers to a communications connection between two communication endpoints or Node (networking), nodes. An example is a telephone call, in which one telephone is connected with one other, and wha ...
, the act of an individual communicating with another *
One-to-one (data model) In systems analysis, a one-to-one relationship is a type of cardinality that refers to the relationship between two entities (see also entity–relationship model) A and B in which one element of A may only be linked to one element of B, and vic ...
, a relationship in a data model *
One to one computing (education) In the context of education, one-to-one computing (sometimes abbreviated as "1:1") refers to academic institutions, such as schools or colleges, that allow each enrolled student to use an electronic device in order to access the Internet, digital ...
, an initiative for a computer for every student *
One-to-one marketing Personalized marketing, also known as one-to-one marketing or individual marketing, is a marketing strategy by which companies use data analysis and digital technology to show adverts to individuals based on their perceived characteristics and i ...
or personalized marketing, an attempt to make a unique product offering for each customer


Music

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One to One (band) One to One was a Canadians, Canadian pop music group formed in 1984 in Ottawa, Ontario. They later changed their name to One 2 One. The duo released three albums and produced ten hits on Canadian charts between 1985 and 1992. Biography Consist ...
, a 1980s Canadian pop music group * ''One to One'' (Carole King album), 1982 * ''One to One'' (Christine Fan album), 2005 * ''One to One'' (Howard Jones album), 1986 * ''One to One'' (Syreeta album), 1977 *
One to One (Ed Bruce album) ''One to One'' is the ninth studio album by American country music artist Ed Bruce. It was released in 1981 via MCA Records MCA Records was an American record label owned by MCA Inc. established in 1972, though MCA had released recordings ...
, 1981 * "One to One" (Freeez song) * "One to One" (Joe Jackson Band song)


Other uses

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One to One (Apple) One to One was a fee-based service for private training at Apple Inc. retail stores. A US$99 one year membership with purchase of a new Mac allows the user to receive a year's worth of Mac, iPhone, iPod, and iPad instruction. The only restriction i ...
, Apple's personal training service *
One 2 One T-Mobile (UK) Limited, trading as T-Mobile UK, was a mobile network operator in the UK. First launched as Mercury One2One (stylised one2one) on 7 September 1993, the network was originally operated by Mercury Communications. One2One was purch ...
, a defunct British mobile telecommunications company, which became T-Mobile UK * ''One to One'' (TV series), an Irish TV series *'' One to One: John & Yoko'', a 2024 film about John Lennon and Yoko Ono


See also

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1-1 (disambiguation) 1-1 may refer to: * New Year's Day, a public holiday in many countries, held annually on the first of January * Schweizer SGP 1-1, an American glider design * World 1-1, the first level of Nintendo's ''Super Mario Bros.'' See also * One-to-one (dis ...
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One-to-many (disambiguation) One-to-many may refer to: * Fat link, a one-to-many link in hypertext * Multivalued function, a one-to-many function in mathematics * One-to-many (data model), a type of relationship and cardinality in systems analysis * Point-to-multipoint communi ...
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Many-to-many Many-to-many communication occurs when information is shared between groups. Members of a group receive information from multiple senders. Wikis are a type of many-to-many communication, where multiple editors collaborate to create content that is ...
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One on One (disambiguation) One on One may refer to: Arts and entertainment Film * ''One on One'' (1977 film), a 1977 movie starring Robby Benson and Annette O'Toole ** ''One on One'' (soundtrack), the soundtrack album from the film * ''One on One'' (2014 film), a 2014 ...
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One-way (disambiguation) One-way or one way may refer to: *One-way traffic, a street either facilitating only one-way traffic, or designed to direct vehicles to move in one direction *One-way travel, a trip that does not return to its origin Music *One Way (American ba ...
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