A central element of the Every Child Matters reforms in England are measures which aim at improving information sharing. Amongst these are the children's database and the Common Assessment Framework, both representing technological solutions to long-standing concerns about information sharing in child welfare. This article reports some findings from an Economic and Social Research Council (ESRC)-funded study which examined their introduction and use in everyday professional practice. Substantial differences in policy implementation, access to and use of the technologies, draw attention to the importance of the localised and situated contexts into which these technologies are being introduced, raising serious questions about their future development as national standard systems.