Job evaluation is a process that determines the relative worth of jobs in order to establish a fair and consistent salary structure. It aims to reduce inequalities, allow specialization of roles, and help in employee selection, evaluation, and retention. The key objectives of job evaluation are to establish equitable pay differentials, eliminate wage inequalities, ensure equal pay for equal work, and provide information for career planning and management of employee issues. The job evaluation process involves preliminary planning, job analysis, internal and external evaluation of jobs, design of a salary structure, grading jobs within the structure, and developing procedures to maintain the system over time.