In computer science, an abstract data type (ADT) is a mathematical model for data types. An abstract data type is defined by its behavior (semantics) from the point of view of a user, of the data, specifically in terms of possible values, possible operations on data of this type, and the behavior of these operations. This mathematical model contrasts with data structures [Data structures], which are concrete representations of data, and are the point of view of an implementer, not a user.
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“Abstract Data Type.” 2022. Wikipedia, June. https://en.wikipedia.org/w/index.php?title=Abstract_data_type&oldid=1093187237.