What does "1..*" and "0..1" mean in the diagram?

Question

Database design

There is a diagram of the structure of the database of the online store. I don't understand what the relationship "1..*" and "0..1" means between the tables "Product" and "Cate_prod". Most likely this is some kind of well-known designation, because. I have seen it somewhere before, but now I have not found any information. Does anyone have any guesses?

Answer 1

1..* is a description of a one-to-many relationship and its inverse relationship is 0..1, many-to-one. Here