This thesis is available from October 2025 at the earliest. If you require a thesis before this date, please consider another topic.

Parametric CAD software like Fusion360 or FreeCAD use sketches to define 3D geometry and ultimately design complex parts. Creating these sketches can be a time-intensive, complex process. Modern AI systems promise to increase the productivity of complex tasks like this by automating tedious and repetitive aspects.

In this thesis, your goal will be to explore how the presentation and interaction design of AI-assistance in these situations affects the engineers productivity. To this end, you will extend existing CAD tools to facilitate AI support in two ways: fine-granular AI completions at the level of individual sketch parameters (e.g. dimensions) and high-level generation from descriptions, e.g. through a conversational interface (roughly similar to inline auto-completion and conversational interfaces in coding). You will then conduct a user study to evaluate the differences between these interaction paradigms with respect to productivity.