Model 3f - Exclusive Gateway with Probabilities

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.

Model 3 f
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

Report

See below for the run configuration, which we set up to receive the report statistics from below.

Please refer to the section Experiment Results for more information on the report specific data.

Run configuration

  • Stochastic Seed: 12345

  • Simulation start date: 1/1/2014 12:00:00 a.m.

  • Simulation stop time: 240

  • Simulation stop time unit: Hours

Report statistics

  • Have a look at this report’s gateway details (see Figure 2)

  • You will notice that the probability configuration is reflected in the gateway statistics

model3f gateways
Figure 2. The report’s gateway details