How would you use UML to model the following relationship? A user has many privileges, one privilege is authorized to one domain. The code is as follows:

			

			public class User
			

			{
			

			private Vector privileges;
			

			}
			

			

			public class Domain
			

			{
			

			private Vector domainEntites;
			

			}
			

			

			public class Privilege
			

			{
			

			private User theUser;
			

			private Domain theAuthorizedDomain;
			

			}
			

		

One choice would be to use aggregation and association.

			

			1      1
			

			User
			<>--------Privilege------->Domain
			

			1    0..n         |------>User
			

			1      1
			

		

Another choice would to use association and association class.

			

			1      0..n
			

			User----------->Domain
			

			|
			

			|
			

			Privilege