Systems Dynamics Modeling.pptx

A brief presentation on systems thinking

1. Systems Dynamics Modeling Decision Making Support Tool

2. Session Contents Origins Open Loop Thinking Closed Loop Thinking Systems Dynamics Modelling Tools Simulation Lab Conclusion

3. Origins Created by Dr. Jay Forrester in the mid-1950’s while at MIT Dr. Forrester had background in EE and pioneer in early digital computers. Inventor of Random Access Memory Came to understand that social systems are much harder to control than physical systems, and often source of difficulties faced in projects Evolved beyond methodology to thinking framework with applications in numerous fields

4. Open Loop Thinking

5. Problems with Open Loop Thinking Assumes problem is an isolated event to be solved in isolation Linear thinking - does not consider feedback from others Open Loop Thinking

6. Closed Loop Thinking

7. Closed Loop Thinking

8. Systems Dynamics Modelling Tools Causal Links

9. Systems Dynamics Modelling Tools Causal Loops

10. Systems Dynamics Modelling Tools Causal Loops

11. Systems Dynamics Modelling Tools Causal Loops

12. Systems Dynamics Modelling Tools Causal Loops

13. Systems Dynamics Modelling Tools Causal Loops (delay)

14. Systems Dynamics Modelling Tools Stock & Flow Diagram

15. Systems Dynamics Modelling Tools Stock & Flow Diagram

16. Systems Dynamics Modelling Tools Stock & Flow Diagram

17. Simulation Lab Model by Stella ® Online

18. Conclusion Systems Dynamics Models help us in decision making by examining the effect of different policies on the behaviour and performance of the systems under consideration and their interaction with each other Systems boundaries help us narrow down the scope of complexity of the model investigated “Essentially, all models are wrong, but some are useful” George E.P. Box (Statistician)

19. References Paine, J. (2020, January). System Dynamics:Systems Thinking And Modeling For A Complex World . IAP 2020 SESSION . MIT Center for Transportation & Logistics. (n.d.). Supply Chains as Complex Systems . SC3x Supply Chain Dynamics . MIT Center for Transportation & Logistics. (n.d.). System Dynamics: Modeling the System . SC3x Supply Chain Dynamics .