43.1 DES Model Structure

The DES tutorial example tree, DES.Model.With.Health.States, is a typical DES model.

The model contains two strategies, each of which starts with a DES node. The DES node then has three branches - two time nodes for the Mild and Severe states and a terminal node for the Dead state. To the right of the time nodes, there are branches for the possible competing events. In this simple model, an individual trial will only be at each branch once at most.

The remainder of this chapter will highlight the important elements within this model and considerations when building a DES model.