This work describes how the Diagnostic Tool that seeks to Enrich Labor Functions (HDEFL), works in Latin America, adapted from the Model of the Job Characteristics Theory (MCP) of Hackman and Oldham (1974 and its various reviews) and based on research on labor structures carried out during 10 years in Argentina by Genoud, Broveglio and Picasso (2014, 2018). The interdisciplinary integrative approach to work design, allows to identify what characteristics of work design (CDT, motivational, social and contextual variables), activate three critical psychological states (EPC), conditioning the results of work (RT) in workers, in terms of behavior, attitudes and well-being. The typology of the study is exploratory, descriptive and explanatory; it seeks to encourage transdisciplinary interpretative cuts in the organizational studies anchored in the Sociology of Work, Administration sciences and Organizational Psychology. [ABSTRACT FROM AUTHOR]