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; that is, implies . (Equivalently, implies in the equivalent contraposi ...
, also called an injective function
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One-to-one correspondence
In mathematics, a bijection, also known as a bijective function, one-to-one correspondence, or invertible function, is a function between the elements of two sets, where each element of one set is paired with exactly one element of the other ...
, also called a bijective function
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One-to-one (communication), the act of an individual communicating with another
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One-to-one (data model), a relationship in a data model
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One to one computing (education), an initiative for a computer for every student
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One-to-one marketing or personalized marketing, an attempt to make a unique product offering for each customer
Music
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One to One (band), a 1980s Canadian pop music group
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''One to One'' (Carole King album), 1982
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''One to One'' (Christine Fan album), 2005
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''One to One'' (Howard Jones album), 1986
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''One to One'' (Syreeta album), 1977
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One to One (Ed Bruce album), 1981
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"One to One" (song), a song by British jazz-funk band Freeez
Other uses
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One to One (Apple), Apple's personal training service
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One 2 One, a defunct British mobile telecommunications company, which became T-Mobile UK
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''One to One'' (TV series), an Irish TV series
See also
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1-1 (disambiguation)
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One-to-many (disambiguation)
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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)
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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 ban ...
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