i want to change employees menuitm to be like, let's say 'new_item"

i have created a new module and in which i  declared a xml file with this content 

    <?xml version="1.0" encoding="utf-8"?>

        <odoo>

           <data>

                <record id="hr.menu_hr_employee_user" model="ir.ui.menu">

           <field name="name">New Emp</field>

                </record>

           </data>

      </odoo>

and nothing more, except declaring the name of the same xml file on data ['name_file.xml',]

the problem is, that's nothing change in terms of this menuitem  

any thoughts please !