After the data is extracted from WNWRS, validation steps are performed by NWSSP and any quality issues are flagged to the practice for resolution.
Ar ôl i'r data gael eu hechdynnu o WNWRS, mae NWSSP yn cymryd camau dilysu a chaiff unrhyw broblemau ansawdd eu dwyn i sylw'r practis fel y gellir eu datrys.