Computation of reliability, average reliability, and maintainability of service demand fulfilment dynamically using system dynamics

The dynamic model is developed based on the conceptual model represented by a causal loop diagram (CLD). Next, CLD is converted into a stock and flow diagram (SFD), so the dynamic model can be simulated to achieve the proposed of this article. The result of simulation shows the decrease of service time variables can cause either decrease, increase or no change to the total, the event number, and the average of the reliability, average reliability, and maintainability of service and all services, as well as its demand.