This example illustrates the "Recommended Chardonnays" rule.

This simple example demonstrates a basic record promotion scenario where an application user navigates to Wine_Type > White, and a dynamic business rule called “Recommended Chardonnays” promotes chardonnays that have been tagged as Highly Recommended. From a merchandising perspective, the marketing assumption is that users who are interested in white wines are also likely to be interested in highly recommended chardonnays.

The “Recommended Chardonnays” rule is set up as follows: The rule’s trigger, which specifies when to promote records, is the dimension value Wine_Type > White. The rule’s target, which specifies which records to promote, is a combination of two dimension values, Wine_Type > White > Chardonnay and Designation > Highly Recommended. The style associated with this rule is configured to provide a minimum of at least one promoted record and a maximum of exactly one record. The zone associated with this rule is configured to allow only one rule to produce rule results.

The “Recommended Chardonnays” rule is set up as follows:

When an application user navigates to Wine_Type > White in the application, the rule is triggered. The MDEX Engine evaluates the rule and returns promoted records from the combination of the Chardonnay and Highly Recommended dimension values. There may be a number of records that match these two dimension values, so zone and style settings restrict the number of records actually promoted to one.

The promoted record, along with the user’s query and standard query results, are called out in the following graphic: