| Internal reasons | External reasons |
| ‒ Awareness on the importance of quality is higher ‒ Company employees have a better understanding of their problems regarding their systems, processes and procedures ‒ Quality of product improves ‒ Large and more significant improvement in organization and management ‒ To enforce discipline on employees | ‒ Because customers depend on assurance of quality, firms will register ‒ Certified firms compete better with others in the market place ‒ Market share improves due to perception ‒ To put it on the letterhead ‒ To retain existing customers |