Final answer:
An access control matrix is a table that defines the permissions users or groups have over various resources. For instance, it could signify that Staff can read and write an online document, whereas Managers can also delete it.
Step-by-step explanation:
An access control matrix is a data structure that keeps track of the rights of each user in a system with respect to various resources, like documents, files, or other objects within a computer system. It is a two-dimensional grid with rows representing users or user groups and columns representing resources, with the matrix cells specifying the access rights.
For access to an online document, let's consider a simple access control matrix involving two groups of users: Staff and Managers. Suppose we have an online document called 'ProjectPlan':
User/GroupProjectPlan DocumentStaffRead, WriteManagersRead, Write, Delete
In this matrix, the Staff group has permissions to read and write to the 'ProjectPlan' document, while the Managers have additional privileges, including the capability to delete the document.