I've defined abbreviation UDES
representing untimed discrete-event systems
. Now, I need to talk about the larger class of discrete-event systems
, which includes the former one.
I'm wondering whether I can directly use DES
abbreviation (because I've already defined UDES
) or I have to first define DES
as discrete-event systems
then using its abbreviated form (because it's an independent concept whose abbreviation must be firstly defined).