1. If there is a power failure when making a reservation, all information has to be given again
2. If there is a power outage while there is a check-in or check-out, the guest must wait for the server to boot, which makes him angry.
Personal
1. If a staff incorrectly types the information that the guest might be angry
2. If there is a blackout, when making a reservation the staff must redo the entire reservation.
3. When the night audit is performed, all other users must disconnect
4. If there is a virus attack the stored information may be corrupted and the incorrect information can be given to the guest who could make it angry.
Hotel
1. All staff needs to be trained in software
2. Software needs to be renewed every year
3. High risk of virus attack as systems are connected to the Internet most of the time
4. If there is a virus attack, the stored information could be corrupted
5. In the event of a power failure, the hotel is at high risk of losing all stored information
6. If the audit night is lost one day there may be a destruction the next day.
7. Most cities / countries do not have local support. Support is only possible through the Internet and sometimes takes time.