A data point represents a single point of data. It is typically a number but can also be textual, for example, a status value.
If you add a UI.ReferenceFacet that points to UI.DataPoint, the title and value of the UI.DataPoint will be rendered, as shown below:
<Record Type="UI.ReferenceFacet"> <PropertyValue AnnotationPath="@UI.DataPoint#ProductCategory" Property="Target"/> </Record>