$5$ Consider the library system below:

When a visitor with a library card has found a book to borrow, the card used is to authenticate the visitor identity. The visitor then scans the books at a machine for automatic registration. When all books have been registered for borrowing, a receipt is printed, and the status of the books is updated in the system. Reminders about loans expiring or books not returned on time are sent out to be the borrower daily. There is also a librarian who updates new book releases.

Based on the situation above,

$($a$)$ Construct a context diagram.

$($b$)$ Level $0$ diagram