Date Added: Jul 2011
In this paper, the authors describe the regression test process to test and verify the changes made on software. A developed technique use the automation test based on decision tree and test selection process in order to reduce the testing cost is given. The developed technique is applied to a practical case and the result show its improvement. System maintenance is a general term required to keep a system running properly. The system could be computer system, mechanical system or others. The maintenance in this sense is related to the deterioration of the system due to its usage and age.