Independent testing offers several advantages, such as unbiased testing and detection of different defects.
However, a drawback is that an independent test team may be isolated from the development team and project team. This can lead to communication gaps, reduced collaboration, and a lack of understanding of the project context.
According to the ISTQB Certified Tester Foundation Level (CTFL) syllabus v4.0, an independent test team may not have the same level of understanding of the system as the development team, leading to potential issues in communication and integration (ISTQB not-for-profit association).
References:
* Certified Tester Foundation Level v4.0
* ISTQB Foundation Level Syllabus 4.0 (2023)