A byline for any type of written article is a short phrase or line that tells who wrote the story. A feature article is primarily a human interest story, as opposed to hard news.
An example of a byline would be "By John Doe," assuming that John Doe is the name of the article writer. Feature articles are often written by staff writers for a newspaper or magazine, but, sometimes, guest writers contribute features. The primary characteristics of features are dramatic narratives and prose that deviates from standard, straight-to-the-point news stories. Feature writers often are given more creative freedom for stylistic exploration to highlight a salient feature.