Hi Monique
Yes I have seen its like that and earlier it was awkward but now its how it really is ..since I have been working for 5-6 years on it ..
If you change the field labels it wont impact a lot of things technically since its a webdynro screen and you will only be changing the text part of it /SAPSRM/WDC_DODC_SC_I_BD will be your webdynpro component in that you need to go to WDDOINIT and WDDOMODIFy methods and do coding to change the label of those fields ...
use this Class : CL_WD_LABEL and Method SET_TEXT can be used for the same .
Functionally : I would not recommended making a lot of changes except if it is for a few fields .. else
it may create confusion when the client upgrades as these changes would need be done again ..
Also SAP std nomenclature is how the system interacts with the other Modules ..
so in such cases if the client checks in backend it might be getting them confused .
But at the end of the day it should be driven by client to decide on what they really want ..
I hope that helps ?
Regards
Vinita