Connoisseur

From EvaluationWiki

A term originating in the art world, where it refers to someone highly knowledgeable about some field within art and discriminating within it. Introduced by Elliot Eisner, an art historian and educator interested in evaluation, as a name for a model of evaluation in which he argued for the evaluator as a connoisseur. Given the highly debatable objectivity of judgments about the merit of works of art, this seemed to many to be giving away too much, since it seems much easier to prove beyond reasonable doubt that, for example, a certain reading program is not worth what it costs, than the corresponding conclusion about a modern painter.