How the Information is organized / presented (user side and internal organisation)
What buttons and functions are available to the user and when they are available
to be used
What the underlying behaviour of the system is
What information and controls are available to other users, such as the admin.
staff, super-users, supervisors, executive overview, editorial correspondant
etc
The content and layout of standard printouts available from the system
The printed material accompanying the system (e.g. : CD cover)