Which is a recommended approach when dealing with high-risk items during testing?

Focusing on high-risk items during testing requires a methodical and thorough approach, and structural testing techniques are particularly effective in this context. Structural testing, also known as white-box testing, examines the internal structures and workings of the application, which allows testers to identify potential vulnerabilities and flaws that may be present in high-risk areas.

By employing structural testing techniques, testers can have greater visibility into the codebase, enabling them to design test cases that specifically target complex or critical components that could pose significant risks. This targeted approach ensures that the most important parts of the software are adequately tested, thus increasing the likelihood of uncovering defects that could lead to serious issues in real-world usage.

While other methods, like exploratory testing at all levels, can also be beneficial, they may not always provide the level of detail concerning the internal workings of the software that structural testing offers. Effective documentation and a combination of testing strategies can complement the testing process, but they do not focus directly on evaluating high-risk items through internal examinations like structural techniques do.