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.

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