Approaches to foresight in governments in Portugal, Finland, the United Kingdom (UK), and Flanders were analysed to draw out common themes.
Dadansoddwyd dulliau rhagargoeli mewn llywodraethau ym Mhortiwgal, y Ffindir, y Deyrnas Unedig (DU), a Fflandrys i nodi themâu cyffredin.