UML - reading for the empty diamond and solid diamond arrows
Posted on 2004-09-28
What is the "reading" of those arrows with diamonds on the end?
For empty diamond, A <>-----> B is it "A can contain B" or "B can be a part of A"?
And for solid diamond A<->-----> B is it "A must contain B" or "B is a (necessary) component of A"?
I'm having trouble with the difference between solid and clear diamond. So if I could get the readings for these symbols, it would be helpful.