Model 3g - Inclusive Gateway with Probabilities

Goals of this lesson

• Usage of Inclusive Gateways with Probabilities instead of process variables

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

How-to

As in Model 3f we will use probabilities (or weighs) for each sequence flow at an inclusive gateway to determine the sequence flows to be pursued. Please have a look at the section Using Probabilities from the Gateway Decision Making chapter for more information.

Figure 1. Model 3g - Inclusive Gateway with Probabilities / IYOPRO-Link

Approach

• Just like in Model 3f we will parametrize the sequence flows' Probability properties with the same values:

• Top sequence flow: Probability = 0.1

• Middle sequence flow: Probability = 0.4

• bottom sequence flow: Probability = 0.5

• At inclusive gateways the sum of the sequence flows' probabilities does not matter, because the decision of the sequence flow to be pursued is not exclusive

• The sum can be smaller or bigger than 1

Report

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

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)

• This report’s gateway statistics resemble those from Model 3f’s report

• The only considerable difference is that the number of each sequence flow (n) has increased

• This bases on the fact, that the inclusive gateway allows multiple successive sequence flows

• Note that the relation between the sequence flows is almost equal to those of Model 3f

Figure 2. The report’s gateway details