The heart of the Thesaurus is its database. All information on the antique artefacts and their early modern visual documentation are recorded and stored in it. The digital strategy of the Thesaurus focuses on sustainability and stability with regard to the choice of technologies in the back end on the one hand, and on flexibility with regard to the choice of design of the front end on the other. In addition, in the era of Linked Open Data, there is the use of established standards and interfaces as well as the open licensing and accessibility of the Thesaurus' own research data, in order to be able, for example, to network with other relevant digital resources in the future.