The relationship of jobs makes possible the quick identification and classification of each of the profiles of the company, constitute a tool of undoubted practical value if they are applied with a minimum of technical rigor in the organization of human resources management by the company.

The starting point will be the definition of the functions of each one and the determination of the number of holders that must perform it in order to provide the necessary services, therefore serving as cataloging guide of the different professional profiles and in the business organization.

Without these instruments, significant distortions occur in human resources management:

• Overlaps of functions and tasks.
• Ignorance of the interrelationships and interdependencies between the company's personnel.
• Pay inequalities unjustifiable among company personnel.