1. Check the total weight exceeds the total weight it 
specifies, Check whether the error signals or sent properly 
or not
2.Check for whether the lifts stops in correct floor when 
pressed the perticular number

3.Check whether (if the lift doors are automatic) the doors 
are opened properly only when lift is not running

4. Check for the indicator representing the floor number 
are displayed properly and is matched

5. Check the behaviour of the lift when pressed some 
irregular ( like pressing open the door) button when lift 
is moving

6. Check for what should be the behaviour of the lift  in 
case of emergency,

Please let me knw whether the above said cases are correct 
or not.

I dint think the 2nd and 3rd test will fall under -ve test 
category...?

1) Enter more than the specified person
2) smoke or lit fire inside the lift
3) try opening door while moving.
4) press stop before the destination.
5) press opposite button from the source eg. if on ground
floor press down button and vice versa

Byee

Kishore