An interactive and dynamic data analysis tool that helps interactive analysis in real time on medium size datasets having complex structure is described. In one aspect, the data analysis tool is capable of being configured to act as a data producer tool arranged to provide a data source. The data analysis tool can also be configured as a data consumer tool capable of receiving and processing a particular data source. The data source tool and the data consumer tool are connected together to form a framework that takes the form of a data mapping context that mediates the data provided by the data source and a particular data role.