Improving the learnability of system dynamics simulation tools: a new design for a tablet device

Abstract

A common problem for novice users of several engineering simulation tools is that they perceive a great gap between the mathematical model and how it will be represented in software applications. Available packages, particularly for system dynamics simulation methodology, do not overcome this gap, because they were not designed within the framework of user interface and user experience design. Therefore, the simulation tool itself becomes a barrier to learning this methodology. In this article, the authors present a new visual and interactive design for system dynamics modelling, which could foster the experience for the user. To test this design, prototype software, Flux, was implemented on the iPad tablet platform. A learnability test of the proposed solution against a well-known software package showed an improvement of the initial performance for engineering students and of their understanding of system dynamics concepts. This research also revealed great opportunities to apply user-centred design and multi-touch interfaces to improve the user experience of simulation software in engineering, sciences and management.