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Access control matrix. In computer science, an access control matrix or access matrix is an abstract, formal security model of protection state in computer systems, that characterizes the rights of each subject with respect to every object in the system. It was first introduced by Butler W. Lampson in 1971. [1]
NCR Corporation model of self-service checkouts and fast-lane at a Sainsbury's store. NCR Corporation model of self-service checkout at an IKEA store.. Self-checkouts (SCOs), also known as assisted checkouts (ACOs) or self-service checkouts, are machines that provide a mechanism for customers to complete their own transaction from a retailer without needing a traditional staffed checkout.
The Customer Service System ( CSS) of the BT Group (previously British Telecommunications) is the core operational support system for BT, bringing in 70% of income for the company (figures from 1997). BT rolled out CSS nationally in 1989 and provided an integrated system for telephony—order handling, repair handling and billing.
Software requirements [1] for a system are the description of what the system should do, the service or services that it provides and the constraints on its operation. The IEEE Standard Glossary of Software Engineering Terminology defines a requirement as: [2] The activities related to working with software requirements can broadly be broken ...
multics-wiki .swenson .org. Multics (" MULTiplexed Information and Computing Service ") is an influential early time-sharing operating system based on the concept of a single-level memory. [4] [5] Nathan Gregory writes that Multics "has influenced all modern operating systems since, from microcomputers to mainframes." [6]
A remote access service ( RAS) is any combination of hardware and software to enable the remote access tools or information that typically reside on a network of IT devices. A remote access service connects a client to a host computer, known as a remote access server. [1] The most common approach to this service is remote control of a computer ...
Self-organized time-division multiple access ( STDMA) is a channel access method designed by Håkan Lans, [1] based on time-division multiplexing . The term "self-organized" describes the manner in which time slots are assigned to users. Time-division multiple access (TDMA) divides a channel into frames, which furthermore are subdivided into a ...
A mesh basic service set ( MBSS) is a self-contained network of mesh stations that share a mesh profile, defined in 802.11s. [9] Each node may also be an access point hosting its own basic service set, for example using the mesh BSS to provide Internet access for local users. In such a system, the BSS created by the access point is distinct ...