Recall that Lothar collects 19th century cow books. He hires you to make an IS for him.
Lothar likes to show off. He wants his IS to be the go-to place for cow book enthusiasts. Want to know the authors of a book? Check his IS. Want to know the cow books published by a particular company? No prob, dude.
Lothar wants to list books that aren’t in his collection, as well as books that are. For example, Lothar might see an add in an old agricultural magazine for a cow book he doesn’t have. The ad might have enough info for him to create an entry for it.
Sometimes people discover cow books that nobody knows about. Contact Lothar. If it checks out, he’ll let you add the book to his IS.
Want to sell a cow book? Send an offer to Lothar. If the price is right, he might buy it.
Make a page on your cowbooks site. List the stakeholders and their requirements. Don’t make a menu entry for the page.
Submit the URL of the page.
(If you were logged in as a student, you could submit an exercise solution, and get some feedback.)