Go-chairmen France Pavese, IMGC, Italy, and Gavin Kelly, NPL, UK, introduced the meeting on data fusion and its applications to metrology. The invited presenters were Gavin Kelly, NPL, Jaime Esteban, Manchester University, UK, Hannah Cook, NPL, Richard Rusby, NPL, David Simpson, NPL, Ian Parker, ICI, UK, and Robert Davis, BIPM, France.