providing judgements on quality and relevance of evidence and research, suggesting priority areas for future work and advising on how they should be implemented to achieve greatest benefit
cynnig barn ar ansawdd a pherthnasedd tystiolaeth ac ymchwil, gan awgrymu meysydd blaenoriaeth ar gyfer gwaith yn y dyfodol a chynghori ar sut y dylid eu gweithredu er mwyn sicrhau'r budd mwyaf