CIDOC documentation: E18 Physical Thing
Features are subunit of a Place and used in archaeological data recording. E.g. graves or buildings of a site would be considered Features.
Super and subunits
In the OpenAtlas database a feature is a subunit of a Place. A Place can consist of one or more subunits called Features (e.g. buildings, graves, pits, ditches, ramparts etc.). Features themselves are structured in the same way as Places and can consist of one or more subunits that are labelled as Stratigraphic unit.