The interface to FAIRmat is most relevant for NFDI-MatWerk, since condensed-matter physics is the basic science perspective on solid-state phenomena. The resulting consequence for the infrastructure is explored in this IUC. FAIRmat focuses their effort on fundamental chemo-physical effects. In the case of atom probe tomography (APT), for example, the correlation of details of the electric field and the electronic density in the specimen needs to be analyzed and understood in order to predict the emission of atoms from steps at the surface. Such predictions are the key to arrive at more accurate and precise predictions of the ion launch to support research on methods on improved reconstruction methods. In contrast, NFDI-MatWerk addresses the relevance of the microstructure for engineering materials and their applications. Therefore, the focus of NFDI-MatWerk is on the correlation of atomic positions and defect states as a function of the chemical potential and the specimen history (processing, heat treatment). For both perspectives, several gigabyte of data needs to be handled and evaluated with machine learning approaches.