access matrix

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access matrix

[′ak‚ses ‚mā·triks]
(computer science)
A method of representing discretionary authorization information, with rows representing subjects or users of the system, columns corresponding to objects or resources of the system, and cells (intersections of rows and columns) composed of allowable operations that a subject may apply to an object.
References in periodicals archive ?
An access control matrix is used to control what a user can do with the files and/or programs he or she is authorized to access.

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