Decision Table simulation example

The Business Knowledge Model (BKM) described in this section is available from the Model Wizard (Ctrl+Shift+M). In the Perspectives select the Requirements | Decision Modeling.

To access the example used in the following section:

• Create pattern for 'DMN Decision | A Complete Example'
• Navigate in the Browser window to 'A Complete Example | Business Knowledge Models | Eligibility rules'
• Double-click on the 'Eligibility rules' element to open the BKM in the DMN Expression window

When a Decision table is created for a Business Knowledge Model, we can test this BKM by binding some values:

We can provide test values such as these:

Click on the Simulation button on the tool bar; this result is obtained:

• The runtime parameter value will take the place of 'Allowed Values' in simulation mode
• Valid rule(s) are highlighted
• Since this Decision table's hit policy is P (Priority) the final result is determined by the order of 'output values'; since 'INELIGIBLE' and 'ELIGIBLE' are the output values and 'INELIGIBLE' comes ahead of 'ELIGIBLE', rule #3 will give the final result and this applicant is 'INELIGIBLE'.