the principle of efficiency which concerns the best relationship between the resources employed, the activities undertaken and the achievement of objectives;
prionsabal na héifeachtúlachta a bhaineann leis an ngaol is fearr idir na hacmhainní a úsáidfear, na gníomhaíochtaí a ghlactar ar láimh agus na cuspóirí a bhainfear amach;