An infobox template is an infobox that uses the template software feature. They are a broad class of templates commonly used in articles to present certain summary or overview information about the subject. In theory, the fields in an infobox should be consistent across every article using it; in practice, however, this is rarely the case, for a number of reasons. When this occurs, the infobox templates should be designed to dynamically adapt themselves to the absence or presence of particular fields.