This is 4 task for EPAM systems.

It's a library management system.

Use cases

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1. USERS:

Look for books in library. Show list of books in subscription. Request for new book. Return old book.

2. ADMINISTRATION:

Add new book to library. Get list of users. Look at books in library. Delete users. Promote to administrator.

3. ANONYMOUS:

Registered. Look at books in library. Login.