14677522_ser_Agent_Implementation_Guide_events_to_be_fired_in_each_API_ATK_AT_SPI_event
[Scenario] When an accessibility subtree is moved [MSAA] Treat it as a removal from one place and insertion in another [Mac OS X Notification] AXUIElementDestroyed/ AXUIElementCreated If in a live region, AXLiveRegionChanged [ATK/AT-SPI event] 
Treat it as a removal from one place and insertion in another
WAI-ARIA 1.0 User Agent Implementation Guide