"... It's entirely possible that this is a word well known and in standard usage within the original target audience (which is not us) ..."
'Us', isn't 'me' who does come from a fine/technical art background.
The distinction is subtle. If the writer means train artists with zeal then 'Atelier Method' would be the correct term but Atelier as a place to work? I would have thought "studio" would have been a better choice, derived from Italian, "studio" and Latin, "studium" (and "studere", to "study" & "zeal"). Note the French derivation, Atelier also translates to studio of "fashion designer" and "alchemist" or "wizard". This use is old and not used much.
'Us', isn't 'me' who does come from a fine/technical art background.
The distinction is subtle. If the writer means train artists with zeal then 'Atelier Method' would be the correct term but Atelier as a place to work? I would have thought "studio" would have been a better choice, derived from Italian, "studio" and Latin, "studium" (and "studere", to "study" & "zeal"). Note the French derivation, Atelier also translates to studio of "fashion designer" and "alchemist" or "wizard". This use is old and not used much.