DATA PRUNING TOOL AND RELATED ASPECTS

A method and related aspects are disclosed for determining one or more regions of interest in a multi-dimensional data set comprising a plurality of parameter sets, each parameter set comprising a parameter set identifier, a plurality of dimensions of selection conditions for assessing a configurable physical entity, and an indication of an assessed characteristic of the configurable physical entity. The method comprises at least mapping, using a self-organising map, SOM, model which uses competitive group learning, the multi-dimensional data set onto an edge-connected surface mesh of neurons; identifying at least one cluster of neurons on the surface mesh based on a category of the assessed characteristic; identifying a set of ranges of boundary values for the selection conditions for each cluster, each range of boundary values comprising a maximum and a minimum weight value of the weights representing that selection condition of the neurons in that cluster; and determining one or more regions of interest which associate the boundary values of the selection conditions of each cluster with one or more test case identifiers for the test cases represented by the neurons in that cluster. The method may be implemented in some embodiments as a data pruning tool.