Can you give an example of these software tools?
Sure- “tools” such as debuggers, compilers, editors, code generators. These would be part of the software design process. We’re having a debate here at work about this. My answer is that it is risk dependent, and successful validation of the SW itself exemplifies the tools as being successful in doing their “job”. If the tools are rated high risk, due to the software being high risk, each tool may be validated as determined needed by the risk analysis.
What do you think?