Since the work was produced by higher education, the words tend to be a little bigger than we normally use. Domains may be thought of as categories. Instructional designers, trainers, and educators often refer to these three categories as KSA (Knowledge [cognitive], Skills [psychomotor], and Attitudes [affective]).
Electronic shifting is popular on time trial bikes, but generally not so popular when riding in the peloton. Some riders have had mechanical problems with electronic shifters getting stuck in one gear going up climbs. Iâve seen a few pros having to kick the small derailleur into the small ring when it has gotten stuck on the big ring, for example.
There is a misunderstanding held by some that Di2 Shimano's revolutionary electronic shifting system is wireless. It's not. It's only cableless. Were it wireless, it would require a lot more on-board power and your bike would need a bigger battery than the remarkably small and light one that the Di2 system requires.