| Human Expert | Expert System |
| 1. Humans are naturally perishable. | 1. They are permanent. |
| 2. They are expensive. | 2. They are cheaper to operate. |
| 3. They are inconsistent. | 3. They are consistent. |
| 4. They are difficult to transfer. | 4. They are easy to transfer. |
| 5. They are difficult to document. | 5. They are easy to document. |
| 6. They are creative. | 6. They are uninspired. |
| 7. They are adaptive. | 7. They need to be told. |
| 8. They process sensory experience. | 8. They need symbolic input. |
| 9. They have broad focus. | 9. They have narrow focus. |
| 10. They can deal with common sense knowledge. | 10. They need technical knowledge. |