It depends on who you talk to I reckon. At least to me or us....it means the same thing.
It’s just a matter of word preference because I’ve noticed some like to use ‘parts’ and others ‘alters’. I’m partial to parts myself because ‘alters’ sounds so mentally ill.
As far as dissociation skills...I live on the edge expecting it to happen at any given time. The moment I let my guard down....
Truth be known...life has taught us to not be surprised...deal with it on the fly....improvise.... or just play stupid till all the heavy **** quits flying.
Sucks I know it....more to follow.