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:
“The man who knows governments most completely is he who troubles himself least about a definition which shall give their essence. Enjoying an intimate acquaintance with all their particularities in turn, he would naturally regard an abstract conception in which these were unified as a thing more misleading than enlightening.”
—William James (1842–1910)
“Was man made stupid to see his own stupidity?
Is God by definition indifferent, beyond us all?
Is the eternal truth man’s fighting soul
Wherein the Beast ravens in its own avidity?”
—Richard Eberhart (b. 1904)
“... if, as women, we accept a philosophy of history that asserts that women are by definition assimilated into the male universal, that we can understand our past through a male lens—if we are unaware that women even have a history—we live our lives similarly unanchored, drifting in response to a veering wind of myth and bias.”
—Adrienne Rich (b. 1929)