Glossary
Mandatory access control (MAC)
Access control where access rights cannot be changed by the users.
Metadata
Data about data – that is, data describing the structure, content or use of some other data.
Multi-level security
The ability of a computer system to process information with different security levels, to permit access by users with different security clearances, and to prevent users from obtaining access to information for which they do not have authorised access
Multimedia data
Data representing documents, audio (sound), still images (pictures) and moving images (video).
