A Hierarchical Multilevel Modeling Framework for the Creation of High-Quality Solid Models in Parametric Feature-Based CAD Systems

Previous research in human-computer interaction (HCI) has focused relatively little attention on making parametric Computer-Aided Design (CAD) tools user-friendly.This study aims to address key research questions about the difficulties beginners encounter when using parametric CAD tools, the reasons behind these challenges, and the principles of interface design that can improve their understanding.To answer these questions, a comprehensive three-stage design framework for CAD Graphical User Interfaces (GUIs) is proposed.The first stage involves analyzing user experience (UX) within the context of the CAD interface, followed by developing customized solutions to meet specific requirements in the second stage.Finally, the framework includes rigorous testing and evaluation of the CAD GUI solutions against the identified requirements.Statistical analysis was used to validate the improved usability perception of the new interfaces.This framework leads to the creation of rules supporting the design of understandable GUIs for parametric CAD tools.Ultimately, this research contributes to advancing comprehensible GUIs by shedding light on the challenges beginners face, offering practical recommendations to enhance their experience, and facilitating a better understanding of tools to increase their efficiency.