A constraint redundancy elimination strategy to improve design reuse in parametric modeling

Strategies for design reuse play a fundamental role in the development of products that change and evolve over time. Design changes often involve modifications geometry parts assemblies, which are driven by digital representation product, i.e. procedural parametric CAD model. Consequently, constraint redundancies two-dimensional profiles build model can significantly hinder alterability reusability. This paper argues redundancy conditions not solely computational problem but more complex issue involves interaction with sketch throughout modeling process scheme used to convey specific intent. We analyze representative group 3D MCAD systems their corresponding geometric kernels Geometric Constraint Solvers (GCS) determine how is managed at profile level. Next, we report results series experiments evaluate influence redundant constraints on editing reusability tasks describe new software tool identifying parsing conditions. conclude unnecessarily compromises conciseness, robustness, overall quality, negatively affects user productivity downstream processes. The implications training emphasized. Our also demonstrate value our assist users maximizing (by removing redundancies) communication intent proposing an optimal set non-redundant constraints), further necessary use it as practical engineering analysis.