3 in 1 Training, Resolution to Fulfill the Need for Skilled Industrial Workers. 3 in 1 training is a competency-based industrial training program that includes training, competency certification, and work placements in industrial companies as an effort to meet the demand for workers with certain competencies in industrial companies. 3 in 1 training participants receive special skills training and certification tailored to the needs of workers in certain industrial companies and then immediately placed to work in these industrial companies.