n contrast, structured on-the-job training involves a program designed to teach new
workers what they must know and do in order to complete their tasks successfully.
On-the-job training represents a significant investment considering that roughly 30
percent of a new worker's time is spent in on-the-job training during the first 90 days
of employment, that productivity of experienced workers assigned to train new
workers may decrease during the training period, and that new workers may make
expensive mistakes, according to William J. Rothwell and H.C. Kazanas in Improving
On-the-Job Training. Hence, it behooves companies to design and implement
systematic training programs.