I am trying to understand this certain case:

```
 ---------                ---------
|         |0..*      0..*|         |
|CLASS  A |------------->| CLASS B |
|         |              |         |
 ---------                ---------

 ---------                ---------
|         |1..*      0..*|         |
|CLASS  A |------------->| CLASS B |
|         |              |         |
 ---------                ---------

```

What I understand from the first example is:
One Object from Class A has a relationship to zero or more Objects from Class B. That makes sense, because Class A knows Class B. But what exactly does the other multiplicity mean? Class B doesn't know Class A, so it doesn't seem to make sense to put a multiplicity there.

Same goes for the second example.

If someone has a good explanation, I would be very thankfull.

Greetings,
john