access matrix

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 ?
Encrypt(M, (A, [rho]), GP, {PK})[right arrow]CT The encryption algorithm takes in a message M, an [eta]xl access matrix A with [eta] mapping its rows attributes, the global parameter, and the public keys of the relevant authorities.
It includes an available matrix L, an access matrix X, objective function vectors F (X) and constraints.
The UP & Working project is led by Access Matrix Ltd, a subsidiary of the award winning Sadeh Lok Housing Group.
The latest developments are part of an intensive collaborative schedule on a number of strategic phases of the 21CN programme, involving the concurrent installation of a test access matrix, in tandem with the first phase of migration in South Wales this year, and the beginning of customer upgrades nationally from early next year.
During the initial phase, the QT-200 will support the Evolutionary Test Access Matrix (EVOTAM) by delivering automated remote test tools for DSL and copper plant.
The L9310 and the L9311 integrate three functions - a subscriber line interface circuit, a solid state ringing access switch and a test access matrix - into a single package, while the L9312 and L9313 offer only the two first functions.
The strategic partnership will enable customers to access Matrix U.
It also has two subsidiary firms - research and training business Access Matrix and employment agency Up & Working Ltd.
All event competitors, workers and attendees were required to wear a badge with a bar code and an RFID tag containing identifying information such as name, country of origin and a venue access matrix.
Access Matrix, part of the Sadeh Lok Housing Group, organised the event, which focused on diversity in the workplace.
Acterna's DSL Test Solution provides an intelligent and flexible solution that is interoperable with the digital subscriber line access multiplexers (DSLAM's) currently in use by BT (Alcatel and Fujitsu) and the Test Access Matrix (TAM) from UTEL in the UK.
The project is headed by Access Matrix, part of Edgerton-based Sadeh Lok housing group.