Hello All,

I want to restrict outer dimensions of a part that is length, width or height. 
How I can do this? I mean we can add operations to cut the part or to add hole but within it's outer dimensions only but should not be able to add length, height or thickness. Any other feature that is move face or similar kind should not be allowed or able to change outer dimensions. 
With help of making read only dimensions it makes unable to edit but still another one can increase the size with the help of move face operation. Also is there any option to restrict dimensions as well, I mean not able to change read only dimensions or it's type. 
Please see images below for your reference. 

Thank you in advance.