All data entry screen fields will be tested for edits and for the data they will accept. System tables will be tested. The database will be tested. Live data is used to test the system. The system is run in parallel with the existing system, for some period.
Volume testing is conducted which simulates peak and normal work loads.
The telecommunications component of the system will be tested. That system back up and recovery is tested. Determine how tests conducted are going to be documented, who is going to conduct the tests and how will problems be reported and resolved. Who is responsible for insuring testing has been satisfactorily completed. Insure controls are in place such for editing and control totals which ensure the converted data is complete and accurate.