Suppose in my Business Domain Model, the relationship between A and B is : A 1-------> 0..* B

Question: 1) In Class Diagram, do I need to show the notation at each end indicating the multiplicity of instances of that entity ?

2) If YES, in Class diagram will I use same notation as in the Business Domain Model ? ex: the above relationship will be the same notation in Class diagram : A 1-------> 0..* B

3) The arrows at the end of each relationship in the Business Domain Model, will they be the same in the Class diagram ?