sentences:  Barker invented SmartSlab, a multimedia large scale digital LED display panel system, in 1999, whilst working on a Millennium Dome zone with architect Zaha Hadid.Barker also developed the V/SpaceLAB virtual reality system for architecture which artists Langlands and Bell used for an exhibit at the Imperial War Museum in 2003.From 1997-2005, Barker ran DCA-b (later called b Consultants Ltd.), a multidisciplinary design practice.