“We were reviewing the performance of that functional and end user experience by speaking to the Early Help Managers and getting their feedback.” (Insight Bristol) Working closely with users and understanding their needs ensured that the datasets that the TFD brought together were relevant and would make a difference to their work. For example, the use of school attendance, which was noted by practitioners as a particularly useful piece of information. This included datasets that hadn't previously been accessible by practitioners in Children's Services, for example, Child and Adolescent Mental Health Services (CAMHS) data. Different practitioners spoke to the benefits of this approach: “We were very much involved from the beginning of TFD. And it helped in terms of what we needed from the system. I use TFD pretty much on a daily basis.” (Early Intervention Manager) This kind of intensive engagement work also ensured there was commitment and buy-in from end users when the tool was ready to be used: “We've built the emotional buy-in of the staff that believe they've contributed and created a tool for their own use… We knew what we were going to create in the dashboard because we got years of experience of it. But it's that buy-in" (Head of Service) From a technical point of view how this data was brought together was equally important. In the past, members of the Insight Bristol Team describe that, whilst family members were linked on case management systems, data wasn't brigaded in a way where the needs of a whole family could be understood easily. Also, data from external sources was accessed via a large spreadsheet, making retrieving insight on individuals challenging. Spreadsheets were also sent on an ad hoc basis and therefore relied on manual request and send proces