Goals of this lesson

- Usage of Exclusive Gateways with Probabilities instead of process variables

Model 3f uses probabilities to determine which sequence flows shall be pursued.

How-to

Instead of declaring process variables, we can simply use probabilities (or weighs) for each sequence flow at an exclusive gateway to determine the sequence flow to be pursued. Please have a look at the section Using Probabilities from the Gateway Decision Making chapter for more information.

Figure 1: Model 3f - Exclusive Gateway with Probabilities / IYOPRO-Link |

Approach

- Click on each of the 3 sequence flows successive to the exclusive gateway and supply the following values to its Probability property:
- Top sequence flow: Probability = 0.,1
- Middle sequence flow: Probability = 0.,4
- bottom sequence flow: Probability = 0.,5
- Remember that the sum of the sequence flows' probabilities must be equal to 1