static void Main(string[] args)
{
var user = new User();
var dept = new Department();
IFactory factory = new SqlServerFactory();
IUserOperation iOper = factory.CreateUserOperation();
iOper.Insert(user);
iOper.GetUser(1);
factory = new AccessFactory();
IDepartmentOperation id = factory.CreateDepartmentOperation();
id.Insert(dept);
id.GetDepartment(1);
Console.Read();
}