[midPoint] Notification or approval for attribute change

[Brad Firestone]

Hi All,

I have a situation where a certain User attribute might be changed by 
multiple people.  If that attribute value is changed, we'd like to 
either set a different attribute value on a certain database table 
resource, or send a notification that the attribute value was changed. 
Or if there was a way to run that attribute value change through an 
approval process, that would work too.

Here's an example:

Existing (extension) attribute:  SystemA_ID
If a new user is created, populate the database table with the initial 
value, no notification needed.
If SystemA_ID value is changed through an administrative action in the 
GUI (user channel) do one of the following:
  - send a notification email to a certain address to advise them of the 
change.  OR..
- place a current timestamp value in a separate column in the database 
table such as:  SystemA_ID_changeDate.  OR...
-initiate an approval process to approve the value change of this 
extension attribute.

Does anyone have any ideas of how to accomplish this?  Thanks for any 
suggestions!
Brad