i am studying net weaver 's ume.I have had conception of action.xml,etc.
i have a question:
how to display view according user 's Authentication.
I will write a calculator program,it has two operations:"add","sub"
i have created three users,
user A can use "add",
user B can use "sub",
user C can use two operations,
when user A logon to web,he only see url of "add",
when user B logon to web,he only see url of "sub",
when user C logon to web,he can see two url.
how can i implement this program?