The aim of the three projects was to demonstrate the value that data linking can add in terms of developing a far richer evidence base to support policy development and evaluation.
Nod y tri phrosiect oedd dangos y gwerth y gallai cysylltu data ei ychwanegu o ran datblygu sail tystiolaeth llawer mwy cyfoethog i gefnogi datblygu a gwerthuso polisi.