Is there a list of the qualitative jobs, the ones that add value for skill?
Let me see:
bowyer
carpenter
engraver
mason
trapper
cook
armorsmith
metalcrafter
metalsmith
weaponsmith
gem setter
bone carver
clothier
glassmaker
leatherworker
potter
stonecrafter
wax worker
woodcrafter
mechanic
siege engineer
building designer
Not all jobs that use these skills are quality related:
'carpenter', 'mason' and 'mechanic' are used for building walls etc. and connecting levers, so it can be useful to have lots of dwarves with these skills but restrict the workshops to all but the most skilled.
edit: some constructions (wells, maybe others) use 'mason'/'carpenter'/'metalsmith' for their quality, also.
'engraver' is only quality related for engraving not smoothing.
'trapper' is quality related for making traps, but is also applied to their use.
And do all the others add quantity or merely a shorter production rate for skill?
I think 'grower' increases quantity. I'm not sure about all the others.