Quality Assessment of Generalised Geographical Data

This paper provides a methodology to assess the quality of generalised geographic data. Generalisation consists in representing in a simplified way a same geographic space, according to the scale and to the objectives of the map. The approach is based on (1) a data characterisation in its initial and final state at different level of analysis, (2) a data quality assessment from the comparison of the two previous characterisations and (3) the aggregation of the various assessment results to summarise the data quality. This method is applied to assess the generalisation of a small urban area.