The Source News Service requires high quality decision making and skills in selecting and writing articles, in editing and in presentation. While criteria have been devised to help in the selection of news and feature articles, selection will always remain a matter of judgement by the editors. The overriding criteria should be the needs and interests of the readers. Those writing for the Source News Service are writing for an intelligent lay audience, since few are experts outside their own fields, and most of the audience will not therefore have specialist knowledge of the particular item.