NAPA Steel is mainly used in the early design phase, e.g. for the calculation of buoyancy, drag and maneuverability. However, most shipyards use AVEVA Marine software to design their vessels’ steel structures and outfitting. Although both are intent-driven systems that do not primarily generate explicit geometry but describe the way in which they are generated parametrically and via topological relationships to other elements, the data from NAPA Steel cannot be used one-to-one in AVEVA Marine. The different semantics of the two systems must be mapped to each other in such a way that topology definition, parametric breakthroughs and other features can be transferred in best quality or rebuilt in the target system.