11+ Design Ternary Relationship Er Example Download Zip PNG. 4 among three classes lecturer, course and textbook. Assume the ternary relationship has participating entities a, b and c (for degree > 3 it gets pretty hairy).
Start studying entity relationship (er) model.
• yes, with the help of an associative entity. I'm borrowing this image i found online. The university might need to record which teachers taught which subjects in which courses. However, er diagram includes many specialized symbols, and its meanings make this.