OccurrencesAcronym ExpansionUK Digital National Framework DescriptionDNF data is designed for use as an intelligent digital map within geographical information systems and database systems. In DNF data there is a closer correspondence between data features and discrete real-world objects than has been the case in previous generations of Ordnance Survey products.(Definition adapted from the original specification document) Other specificationhttp://www.ordnancesurvey.../dnf/prodspec3/d00506.pdf |