Officer
the user will be able to approve document created by employees.
Manager
the user will have an access to the human resources configuration as well as statistic reports.
Department multi company rule
['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])]
Job multi company rule
['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])]