Herzberg proposed a dual factor theory to study the satisfaction levels of the employees in an organization. The theory is also referred to as motivation-hygiene theory. The theory proposes that there are two different sets of factors which cause job satisfaction and job dissatisfaction.
The first set of factors is called motivation factors. Only the presence of these factors can make a person satisfied with his job. Factors like the quality of work, job profile come under this category.
The second set of factors is the hygiene factors. While the presence of these factors can not cause satisfaction, their absence causes job dissatisfaction. Factors like work culture, comfort, environment come under this category.