Abstract: Persistent storage may contain a plurality of associations, including an association between: (i) a data source, (ii) an original path appearing in units of structured data generated by the data source, (iii) an original term that is a value linked to the original path, and (iv) a common term from a taxonomy that is normalized across multiple data sources. One or more processors may be configured to: receive, from the data source, a unit of the structured data; determine that an element in the unit of the structured data contains the original path and the original term as appearing in the association; associate the common term with the element; and perform an action that is triggered by the common term being associated with the element and also by one or more additional terms appearing in other elements of the unit of the structured data.