In which of the following activities should the analyst participate?

The involvement of an analyst in creating the quality risk analysis and reviewing test plans is fundamentally aligned with their role in the software development lifecycle. Analysts are responsible for understanding the requirements, identifying potential risks associated with those requirements, and ensuring that test plans are comprehensive enough to cover all identified scenarios.

Creating a quality risk analysis involves evaluating the potential risks that could affect the quality of the product, which is crucial for ensuring that the development team is aware of and can mitigate those risks during the testing process. This proactive approach helps in defining the areas that need more focus during testing and guides the overall quality assurance strategy.

Reviewing test plans allows the analyst to ensure that the tests align with the requirements and that they effectively validate the functionality and performance of the software. Analysts can provide input on what needs to be tested based on their understanding of business requirements and user expectations.

Thus, this combination of activities not only leverages the analyst's expertise but also enhances the overall quality of the product being developed, making their involvement essential at this stage of the process.