Explanation of Cardinality

I am new to database design and there are many terms in the right properties pane that I do not understand. I was looking for an explanation of how to use the cardinality settings and your knowledge base came up a bit short for someone just starting like me.

Here is a link to a youtube video that helped me understand the concept and symbols

You might add more to your documentation on what each property does. So far however, I am very pleased with how easy it is to use your product and how much I have learned in a short time.