Whatever you call it, the fact is that these activities are a major pain. They add no value, and take up time and production capacity, forcing you to make bigger batches than you'd ideally want.
The techniques in PitStop are all about how to reduce these times, boosting capacity, reducing costs, and pushing up profits. You can read the first edition at http://www.sevenrings.co.uk/pitstop/01Introduction.pdf, which talks about the basic concepts of SMED - the technique we use.
If you liked reading my more rambling thoughts, go to http://www.mccracken.me.uk