Sufficient validation tests against the agreed requirements, functional and otherwise, under the conditions of the investigation at hand, ignoring configurations and data that will not arise; it shows the process gives correct results for the inputs met in that investigation, that is, fitness for the intended use the requirements define.
This control maps to 1 controls across 1 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.
The graph holds this control, the 1 it maps to, and the evidence behind each claim, over MCP and REST.