I am a newbie to Stack Overflow so if I make any mistakes in this post please be tolerant.
I am trying to create a (simple) eer diagram (w/o attributes) from the relation schema to check my understanding of going in the opposite direction (from an eer diagram to a relation schema). I am in my first db course. This is not homework -- just practice.
Are there any mistakes or improvements which I can make to the diagram?
My representation of the schema
From Abraham Silberschatz's Book Database System Concepts
Thanks in advance.