Confidence modelling in DiGMapGB-50 for customer needs

This report reviews and tests recent internal research on establishing an efficient, reliable method of creating an indicator layer of confidence in the DiGMapGB-50 data, using expert elicitation. This report provides an overview of work from earlier studies by the BGS with a follow up test based on recommendations (Lee, et al., 2011). The focus of this study was the development and implementation of the follow up procedure which is described in detail. Recommendations for further development of the methodology are provided alongside a proposed way forward.