- The experience and qualifications of design engineers
- Employee turnover (ratio of number of employees who leave the company to the average total number employees)
- Employee empowerment (ratio of the number of processes in which employees have the authority to make decisions without consulting supervisors to the total number of processes)
- Employee satisfaction (ratio of employees indicating high satisfaction ratings to the total number of employees surveyed)
- Employee training (percentage of employees trained in different quality-enhancing methods)