Most BICs generate one or more work item property. In some cases, the name of the properties created or updated can be specified within the BIC's property editor. In others, the property name is hard-coded by the BIC. Consult the corresponding guide for each BIC as well as the property editor for specific BIC activities to determine the names of work item properties.
To find how the BIC acted on a work item, look at the work item’s property hash table, which lists the keys and values the BIC created.