title: What is the inheritance symbol used in ERD diagram?
body: <p>I am certain that the inheritance symbol used in ERD diagram is the triangular symbol.</p>
  
  <p>However, I am uncertain of the symbol used in UML diagram that is used to symbolize inheritance.</p>
  
  <p>I have searched on the Internet and I have seen the symbol of a circle icon with an underline below it.</p>
  
  <p>May I know which is the correct inheritance symbol used in UML diagram?</p>
  
  <p>Thank you</p>