I am a Visiting Research Fellow in Mathematics at the University of South Wales. Before my retiremen ...Read more I am a Visiting Research Fellow in Mathematics at the University of South Wales. Before my retirement, I was a senior lecturer at the university, teaching specialist courses in system dynamics, mathematical modelling and agent-based methods. I was awarded a BSc in astrophysics, and a PhD in applied mathematics, from the University of London, and then spent my career as a lecturer in mathematics. My research is in mathematical sociology with applications to the spread of social phenomena, such as religions, political movements and civilisations. In the mid-1990s, I moved into system dynamics to help present models to non-technical audiences and improve model construction. Since then, I have used my background in physics to help understand the relationship between SD model structure and behaviour, developing the loop impact method and the Newtonian interpretative framework. I am currently a vice president of the UK chapter of the SD society, with responsibility for membership. Hide full description
An interface that allows users to interact with a model.
Sim apps allow users to interact with a model using buttons, sliders, knobs, tables, graphs, and storytelling. These interactions help users understand how parts of a system interact.
Interfaces are created by model authors in the Stella desktop software and can be uploaded to the isee Exchange.
A diagram that represents how elements in a system influence one another.
Models are mathematical representations of how elements in a system are connected and interact (e.g., ecosystems, organizations, supply chains). When running models on the Exchange, results can be viewed in output devices like graphs and tables.
Models appear in the isee Exchange directory when authors upload them from the Stella® desktop software or create them with Stella Online™.
A map that represents the feedback structure of a system.
CLDs are high-level maps that represents the feedback structure of a system and easily communicate the essence of a model. They appear in the isee Exchange when authors upload them from the Stella desktop software or create them with Stella Online™.