database should have at least 3 entities. You should have at least two attributes in each entity. If possible, I would like you to normalize it to be 3NF. But as the textbook says, depending on the database, not always is a higher normalization better. So, with that said, at least normalize your database to be 2NF. In my database, 3NF normalization works best. You are free to select any type of database information system; e.g., CD, DVD or Book collections, recipes, sports teams, small business, community organizations, hobbies, inventory lists, etc