what you refer to as "slicing" most know as "chopping". what you consider "chopping" most just consider as "sampling".
That's the reason I said "I". It's what I call it based on the programs I use.
If you want to get techncical it all falls under sampling.
In acid pro you have a chopper feature to chop the song up into smaller samples(if u have the prg you know what I'm talking about)....in Reason you have a slicing tool to slice up what you chopped or sampled into smaller sections or hit points that you can use with Reason(if uhave the prg you know what I'm talking about).
When using Reason after you make your slices they'll be assigned to various keys on your keyboard or pads on your controller depending on what module you load it up in i.e Dr.Rex, NNXT or NN19
My terminology is correct based on the programs "I" use. Yours may be diff't based on what "you" use or what you've come to call it.
No biggie!