Yarı-yapısal hata senaryo açıklamaları üzerinden canlı sistemlerdeki hataların yeniden üretilmesi

Due to the increasing size and complexity of software systems, it becomes hard to test these systems exhaustively. As a result, some faults can be left undetected. Undetected faults can lead to failures in deployed systems. Such failures are usu- ally reported from the field back to developers. It requires considerable time and effort to analyze and reproduce the reported failures because their descriptions are not always complete, structured and formal. In this study, a novel approach for automatically reproducing field failures to aid their debugging is introduced. The approach relies on semi-structured failure scenario descriptions that employ a set of keywords. These descriptions are pre-processed and mapped to a set of prede- fined test case templates with valid input sets. Then, test cases are generated and executed to reproduce the reported failure scenarios. The approach is evaluated with an industrial case study performed in a company from telecommunications domain. Many field failures were successfully reproduced. The approach is also adopted in the quality assurance process of the company. After one-time prepa- ration of reusable test case templates and training of test engineers, 40% of the reported failures were reproduced without any manual effort.