Target = The target is the item where an action will be fired.  This is a single item in a CRF.  When this item is encountered in the CRF and the user selects the Save button, the system will execute the actions associated with a rule.

RuleRef = The rule definition/expression being used by the assignment is referred to in the RuleRef. This is an OID for the particular RuleDef. Each RuleRef may have multiple ActionTypes.

ActionType = Actions include DiscrepancyNoteAction, EmailAction, ShowAction, HideAction, InsertAction. 

DiscrepancyNoteAction = This action will log a discrepancy note on the target item if the rule expression evaluates to true or false. 

EmailAction = This action will send an email to a specified email address if the rule expression evaluates to true or false. 

ShowAction = This action will show a particular field(s) that is defined in the DestinationProperty

HideAction = This action will hide a particular field(s) that is defined in the DestinationProperty

InsertAction = This action will insert a value into a particular field that is defined in the DestinationProperty

RunOn = The paramter that defines when the ActionType will execute.  The current phases include InitialDataEntry, DoubleDataEntry, AdministrativeEditing, and Batch

OID = Please see OIDs and Clinical Data Keys

DestinationPropertyOID = The item where the Show, Hide, or Insert action will be applied to