• cbrn:AcknowledgementDataType (e.g. cbrn:AcknowledgementData)
• cbrn:DetectionEventUserEntryDataType (e.g. cbrn:DetectionEventUserEntryData)
• cbrn:InspectionDataType (e.g. cbrn:InspectionData)
• cbrn:RequestDataType (e.g. cbrn:RequestData)
• nc:SystemAuditEventType (e.g. nc:SystemAuditEvent)
• cbrn:SystemEventType (e.g. cbrn:SystemEvent)

• Nothing

Can be replaced with:

• nc:EmployeeID
      An identifier for a person in the form of an employee id.
• cbrn:EmployeeID
      An identifier for a person in the form of an employee id.
• nc:UserLogonID
      An identifier for a system user in the form of a person's system access (logon) id.
• nc:UserPersonName
      A person's actual name, used as an identifier for a system user.
• cbrn:UserProperName
      A name of a person in the form of an employee id.

• cbrn:AcknowledgementData (of cbrn:AcknowledgementDataType)
      A set of data regarding an acknowledgement.
• cbrn:DetectionEventUserEntryData (of cbrn:DetectionEventUserEntryDataType)
      A set of user-operator entered data relevant to a Detection Event.
• cbrn:InspectionData (of cbrn:InspectionDataType)
      A set of data regarding an inspection of an item of interest.
• cbrn:MessageStatus (of cbrn:MessageStatusType)
      A status of the message.
• cbrn:RequestData (of cbrn:RequestDataType)
      A set of information identifying the request for which a message provides a response.
• nc:SystemAuditEvent (of nc:SystemAuditEventType)
      A set of system event data for audit reporting purposes.
• cbrn:SystemEvent (of cbrn:SystemEventType)
      A set of data about a system event.

• Nothing