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TIBCO BusinessEvents® Enterprise Edition 6.3.1

# FraudDetection Rule and Unsuspend Account Rule

Add the `FraudDetection` rule, typing in the Source view or Form view, according to your preference.

Most of the code is in the conditions. The first condition checks whether the number of debits in the specified interval prior to the current time is greater than the specified number of debits. The interval and the number of debits are set in the `FraudCriteria` scorecard.

The second condition checks whether the sum of all debits in the verification interval is greater than the specified percentage of the account average monthly balance. The specified percentage is set in the `FraudCriteria` scorecard. The average monthly balance, for the purposes of this tutorial, is set in the Account instance created by the `CreateAccount` rule.

You will also add a rule called `UnsuspendAccount`. This is a convenience rule that allows you to change a customer status from Suspended to Normal at run-time.

## Learning Points

How are conditions processed?
All conditions in a rule must be met, before the action is done. That is, each condition is joined by an implied `AND` operator.
In what order are conditions evaluated?
To learn more the effect of filters, equivalent join conditions, and non-equivalent join conditions on the efficiency of a rule, see Order of Evaluation of Rule Conditions in TIBCO BusinessEvents Architect Guide. Understanding these points helps you design an efficient project.
How can I learn about all these catalog functions?
TIBCO BusinessEvents provides hundreds of catalog functions for use in rules and rule functions. You can use functions you already know about by typing the beginning of the name and then using the completion hints that appear. To learn about more functions, you can open the Catalog Functions view and browse. To see the tooltip for a function, hover the mouse over the function name. You can then drag a function into the editor, as you did in Adding the CreateAccount Rule. As a reminder, here’s how to open the Catalog Functions view: Window > Show View > Other > TIBCO BusinessEvents > Catalog Functions. The tooltips are also available in HTML form, in the Online References section of the HTML documentation for the product.

## More Information

- See all references provided for Adding the InitializeScorecard Rule Function
- Read about Runtime Inferencing Behavior in TIBCO BusinessEvents Architect Guide.

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TIBCO BusinessEvents® Enterprise Edition

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