Skill variety is ‘a degree to which a job requires variety of skills and talents of the employee’; task identity refers to ‘the job requiring completion of identifiable piece of work’; task significance indicates ‘the impact of job on lives and work of other people’; autonomy is ‘the freedom given to the worker in determining the way of task accomplishment’; feedback refers to ‘the information given to worker pertaining to his performance as a result of carrying out his tasks’.