In the $1930$s$,$ the U$.$S$.$ Department of Labor created the $\_\_\_\_\_$ as a vehicle for helping the new public employment system link the demand for skills and the supply of skills in the U$.$S$.$ workforce.

Career Development Facilitator $($CDF$)$

Dictionary of Occupational Titles $($DOT$)$

Occupational Information Network $($O $*$ NET$)$

Standard Occupational Classification $($SOC$)$

Selected Characteristics of Occupations $($SCO$)$