Human Workers

Two types of labours are involved in a manufacturing system: direct labours and indirect labours. Direct labours perform some or all of the value-added work that is accomplished on the job. They directly add to the value to the job by performing manual work on it or by controlling the machines that perform the work. While indirect labours manage or support manufacturing activities without direct involvement in job processing. All the administrators, marketing personnel, financial managers, and human resource managers are indirect labours.