Entity Relational (ER) diagram, or Extended Entity Relational (EER) diagram based on the information at the bottom. to create the diagram. 

 

On a large online retail platform, different users can log in using their unique identifiers and shop for various items. Each of these items comes with a unique identification code, name, price, and detailed description. Users, apart from their unique identifiers, also provide their name, email, and shipping address. These users can make multiple purchases on different dates, with each transaction assigned an identification code unique to the user, along with recording the date of the transaction and the total cost. Each transaction can consist of one or more items, and the same item could be part of various transactions made by the same or different users.