VIEW UI elements

Hi, I am new to Web Dynpro ABAP, Pls kindly help me out below requirement.

My requirement is When employee is Login, only he can able to see few UI elements in a VIEW.

If MANAGAER is login, manager can able to see all the UI Elemetns in a VIEW. Pls kindly suggest Where i have to write the code

and Procedure.

Thanks,

Lucky