David is co-founder of OCSI, and specialist in Geographic Information Systems (GIS), GIS database development, algorithm design and applications development. He has extensive experience of managing GIS implementation within Local and Central Government, and coordinating GIS services provided by a number of commercial consultancies. Since 1993, David has worked as principal GIS consultant to the Social Disadvantage Research Centre at Oxford University, providing analysis and mapping for projects including the Indices of Deprivation, New Deal for Communities and the 2001 Census Research Programme.