The NDDA is a new archive for a knowledge-based society and the digital era that makes Hungary’s national cultural assets available in a digital form for a wide range of users and by utilising the new features of the network medium it creates added value at service level. The NDDA adds to the value of Hungary’s public collections, cultural databases, the data treasury of the state administration, and the nation’s knowledge stock from various eras and in manifold senses through openness, self-organisation, recycling and content-integration.