The validations built into SWAC can also identify instances where individuals on long-term absence have been mistakenly recorded as present.
Hefyd, mae’r dilysiadau sydd wedi eu hadeiladu i mewn i’r CBGY yn gallu amlygu achosion lle mae unigolion ar absenoldeb tymor hir wedi eu nodi’n bresennol yn anghywir.