The fourth paper we presented last week at the International Conference on Engineering Design (ICED25) focused on “Investigating Relationships Between Performance and Workload in CAD Tasks.”
The paper examined the relationship between engineering designers’ CAD performance and their perceived workload during modelling tasks of varying complexity. By analysing both CAD outcomes and processes alongside all NASA TLX components, it provides a comprehensive view of workload–performance interactions. The results revealed significant monotonic relationships, with stronger correlations in high-complexity tasks, highlighting the influence of task complexity. This work lays the foundation for future studies to investigate more complex, non-monotonic relationships and to explore how dynamic changes in workload can be assessed, thus advancing our understanding of workload and performance in CAD.

This research was carried out in collaboration with Dipartimento di Meccanica – Politecnico di Milano, and supported by the Hrvatska zaklada za znanost (Croatian Science Foundation) under the project DATA-MATION (IP-2022-10-7775).
Congratulations to the authors on their excellent work and presentation! 👏 Fanika Lukačević, Niccolò Becattini, Stanko Škec
