When producing vehicles, it is essential to achieve a high level of manufacturing quality. This includes compliance with shape and position tolerances of exterior components, as these have a significant influence on the gap and flush dimensions of vehicles and therefore determine the external appearance. For this reason, quality assurance includes checking the dimensional accuracy of the exterior components in question. For this purpose, they are mounted and measured on a so-called master jig. The master jig is a physical testing device with which the quality of the gap and flush dimensions can be determined. In the process, lead dimensions must be set so that the actual component is positioned as well as possible (dimensionally accurate) in relation to the neighboring components. This physical process, with the construction of a prototype, is time-consuming and cost-intensive. To reduce complexity and costs, this process should be digitized.