Faults found by users are primarily due to which factor?

The primary reason faults found by users occur can often be attributed to a combination of poor software quality and inadequate testing. When software is developed without adhering to high-quality standards, it is more likely to contain logical errors, design flaws, or other defects that can lead to user dissatisfaction.

Moreover, if the testing process itself is not thorough, it may overlook potential issues or fail to adequately simulate real-world user scenarios. This means that even if the software has a good foundational quality, missing key tests may yield user-visible faults when the software is deployed.

In many cases, an effective testing strategy not only identifies existing faults but also provides insights into potential improvements. Therefore, the combination of both poor software quality and insufficient testing directly contributes to the number of faults encountered by users once the product is released.