Computer software programs including computer software for visualising and analysing spatial temporal data; computer software for integrating disparate types of data, defining methods of access and capture to improve re-use and sharing; computer software for merging disparate types of data and assisting segmentation thereof, generating topological models to enable use of segmented data rendered by spatial, temporal and attributed relationships; computer software for defining data flows to create analysis and visualisation techniques; computer software to enable users to define data flow functions including user developed computer software instructions, mathematical expressions and/or external software routines