Debugging a decision service in Rule Designer

This tutorial provides a methodology for debugging a decision service in Rule Designer.

Before you start
Prepare for the tutorial by reading its description, and checking the audience and prerequisites.
Running the completed decision service
You run the completed version of the decision service to see the expected results.
Task 1: Using automatic exception handling
You import and run the faulty decision service. You find an exception error in a rule, and try to fix the problem by using automatic exception handling.
Task 2: Setting breakpoints
You set breakpoints to determine where a null pointer exception occurs.
Task 3: Debugging a rule
You set breakpoints in a rule and run a debug session. When you find an error, you make changes to correct it.
Task 4: Debugging a decision table
You add breakpoints to an action rule and a decision table, and then run a debugging session to find and fix an error.
Task 5: Debugging a ruleflow
You debug a ruleflow to determine why the decision table does not approve the loan. When you find the cause, you reorganize the ruleflow to achieve the correct results.