The indicator provides current and future estimates of the number of individuals participating in training activities across various sectors and occupations. These activities include workshops, seminars, on-the-job training, or any other relevant training for the job. It is useful for assessing the extent of skill upgrading occurring now and, in the future, helping to identify trends in workforce development.

The calculations are based on the Cedefop European Skills and Jobs Survey (ESJS2) combined with the Skills Forecast employment projections. The data retrieved from ESJS2 refers to respondents who reported having undergone training in the last twelve months.