The cataloguers' training in the 21st century represents in Mexico a true challenge, due to the shortage of human resources in the LIS area. That does necessary to design strategies of cataloguers' training of diverse level, that allows the suitable processing of material in the libraries without spending too much time in the qualification one by one. The combination of the self-training and the training in the work place, the analysis of their advantages and disadvantages, the development of a specific case of application realised from 2005 to the date in Tecnológico de Monterrey, Campus Monterrey, show the possibilities to us of these modalities altogether, without it gives up to the deepest formation of the involved human resources by means of the formal learning
