Olcay Türkoğlu (2nd week unanswered terms)

Direct Labor: The labor directly involved in the manufacturing.(p. 1262) This labor spend his time to producing the part. A machine operator is an example for direct labor. (p. 1263)

Non-productive Labor: The personel involved in supervision, repair maintenance, quality control, engineering, research, sales and office are categorized as nonproductive labor. Because they do not contribute directly to the production of finished parts, or they are not chargeable to a specific product. p.1264

(Kalpakjian S., Schmid S.R., Manufacturing engineering and technology, 5th Edition)