Reply by rance

Alison, in my ‘opinion’, segmentation is with multiple pieces of wood glued to represent a ring or platter or a line, regardless of the method of obtaining the result, whether glued individually or cut/glued/cut/glued…

Intarsia (again, just my opinion) is like a jigsaw puzzle(with locking pieces or not) but with rounded faces & edges to obtain depth. :)

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--