Recent developments in art have been characterised by a significant expansion of what can now deemed to be art, in terms of materials, media, activity and concept. Conceptual art in particular has had a wide influence. This started literally as the replacement of concept for a made object, one of the intentions of which was to refute the commodification of art. However, it now usually refers to an artwork where there is an object, but the main claim for the work is made for the thought process that has informed it. The aspect of commercialism has returned to the work.