OJT the value of on-the-job training

The most common type of training at all levels of an organization is on-the-job training. Whether the training is planned or not, people tend to learn from their job experiences. Based on your experiences, discuss the value of on-the-job training.

 How should we as HRM professionals objectively determine the 'value' of on-the-job training?

 Then, discuss the problems of on-the-job training that should be taken into consideration.

 Finally, make a recommendation as to how on-the-job training can be assessed and used for succession planning.

Support your post with additional information from at least two reputable sources (library and/or web-based). Cite your sources.