The Arbitration strategy is responsible for setting up the attributes that will be used in the final priority calculation (P * C * V * L). These settings are managed within Next-Best-Action Designer and saved into decision data rules (DDRs).
A high-level view of the strategy is shown first, and then each section will be described in more detail.
The strategy first sets the FinalPropensity property to be based on the action or treatment propensity. Then the strategy sets the business value. By default, the action-level business value is used. Modify the business value extension point strategy to change this.
After that, if the Business levers are enabled, the strategy determines business purpose weighting, first at the issue level and then the group level. These weightings are added together and then normalized. For example, a total weighting of 55 sets a final weighting of 1.55.
The strategy then applies context weighting by looking at the Container and Event payloads and searching for a matching Key and Value pairs for each issue and group. If a match is found, the weighting is added to the weight for the specified issue and group. This weighting is also normalized, so a total weighting of 55 sets a final weighting of 1.55.
The next step is to calculate Q & A related context – if any. By default, there is none, but it can be added via the QnAContextWeightingExt extension point.
After the properties are calculated and normalized based on the settings configured in
Next-Best-Action Designer, the Priority property is set using the following formula:
.FinalPropensity * .ContextWeight * .Value * .Weight.
Then all actions and treatments are prioritized based on Priority in descending order.
- Calculate Business Value strategy
The CalculateBusinessValue strategy uses the business value property of the action. An extension strategy CalculateValueExtension is provided for more sophisticated value calculations.
- Question & Answer (QnA) Context Weighting strategy
The QnAContextWeighting strategy simply contains a call to the QnAContextWeightingExt extension point sub-strategy. This can be used to add any Q & A related context weighting. Any weighting calculated here should be added to the ContextWeight property.