“NAFEMS validation” should not be treated as a vague badge. NAFEMS is an engineering modelling, analysis, and simulation community with resources around FEA, CFD, multibody simulation, benchmarks, training, and professional practice.
Verification asks whether the model or solver implementation is doing the intended numerical job. Validation asks whether the model represents the real system well enough for the intended use. Benchmark problems are useful evidence, but passing them does not make every future product case automatically correct.
For AI CAE, the evidence package should include benchmark results, model scope, input checks, uncertainty treatment, and traceability to the product decision. RHXY Sim should make simulation easier without hiding those limits.