Analysis of a Freeform Shape Modelling Process

In this paper, we introduce and analyse a Computer-Aided Industrial Design (CAID) process. For each step performed in the shape modelling process, durations, involved entities, concerned parameters and constraints, initial and final states of the shapes were recorded. The modelling session consisted of three main phases and lasted 2710 seconds. The results show that transformation tools are more used than generation tools. In addition, the usage of entities already in the scene is also preferred over the creation of new entities. Modelling activities using curves or surfaces are equally preferred. However, curves dominated in the first part of the session, whereas surfaces are more involved in the last part of the session.