Identifying Process Improvement Targets in Test Processes: A Case Study

In this paper, we present the results of case studies conducted in three software companies in order to identify the improvement targets in their test processes. The test processes were modeled using the LAPPI (A Light-weight Technique to Practical Process Modeling and Improvement Target Identification) technique. Identifying improvement targets quickly and in a cost-effective way is important to maximize the value of SPI (Software Process Improvement) initiatives. The most significant problems identified in this study were the low level of unit testing, unknown repercussions of code changes, and missing exit criteria for testing. These findings support the results of earlier studies. Further, a less reported problem was identified. It appears that software companies find it difficult to integrate test automation with their manual test processes. Making the recurring test related problems known among the software industry helps to justify the need for test process improvement and standardization of test processes.