Definition
According to the model, the protection state of a computer system can be abstracted as a set of objects, that is the set of entities that needs to be protected (e.g. processes, files, memory pages) and a set of subjects, that consists of all active entities (e.g. users, processes). Further there exists a set of rights of the form, where, and . A right thereby specifies the kind of access a subject is allowed to process object.
Read more about this topic: Access Control Matrix
Famous quotes containing the word definition:
“Although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and reproduction.”
—The Columbia Encyclopedia, Fifth Edition, the first sentence of the article on “life” (based on wording in the First Edition, 1935)
“One definition of man is “an intelligence served by organs.””
—Ralph Waldo Emerson (1803–1882)
“According to our social pyramid, all men who feel displaced racially, culturally, and/or because of economic hardships will turn on those whom they feel they can order and humiliate, usually women, children, and animals—just as they have been ordered and humiliated by those privileged few who are in power. However, this definition does not explain why there are privileged men who behave this way toward women.”
—Ana Castillo (b. 1953)