Preventive Maintenance:    

12 times visit/year including monitoring Hardware and Software at the location, in order to prevent any failure and enhance the life time of the system, including:

• For CPU and Disk, running Diagnostic Program
• Checking Error Log
• For Terminal, checking functions/self test
• Replace damage spare parts
• Healthy check
• Firmware or patch level check
• Disk drive check and drive clean

Corrective Maintenance:

• Unlimeted visited
• Troubleshooting