If an ev:event attribute is specified on the action element, the action is triggered when the corresponding event is targeted at its parent (this is XML Events)

Children of the action element are processed in sequence, with each action completing before the next begins.

At the end of processing the <action> element, the UI and instance MUST be completely up to date.

rebuild actions must be processed immediately.

If a rebuild is flagged to occur and the rebuild action is processed, the rebuild action MUST NOT occur at the end of <action> processing.

recalculate actions must be processed immediately.

If a recalculate is flagged to occur and the rebuild action is processed, the rebuild action MUST NOT occur at the end of <action> processing.

revalidate actions must be processed immediately.

If a revalidate is flagged to occur and the rebuild action is processed, the rebuild action MUST NOT occur at the end of <action> processing.

refresh actions must be processed immediately.

If a refresh is flagged to occur and the rebuild action is processed, the rebuild action MUST NOT occur at the end of <action> processing.

When the insert action has been processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur until <action> processing concludes, at which time the actions MUST occur.

When the delete action has been processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur until <action> processing concludes, at which time the actions MUST occur.

When the setvalue action has been processed, the recalculate,revalidate, and refresh actions MUST NOT occur until <action> processing concludes, at which time the actions MUST occur.

When the setvalue action has been processed, the rebuild action MUST NOT occur.

When the setindex action has been processed, the recalculate,revalidate, and refresh actions MUST NOT occur until <action> processing concludes, at which time the actions MUST occur.

When the setindex action has been processed, the rebuild action MUST NOT occur.

reset actions must be processed immediately.

If a rebuild,recalculate,revalidate or refresh is flagged to occur and the reset action is processed, the flagged actions MUST NOT occur at the end of <action> processing.

If a toggle action causes a rebuild,recalculate,revalidate, or refresh then SOMETHING SOMETHING SOMETHING

When the dispatch action is processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur.

When the setfocus action is processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur.

When the load action is processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur.

When the dispatch action is processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur.

When the message action is processed, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur.

When the send action is processed, and the current document is *not* replaced, the rebuild,recalculate,revalidate, and refresh actions MUST NOT occur at the end of <action> processing.

<action> actions must be processed immediately.

If a rebuild,recalculate,revalidate or refresh is flagged to occur and a child <action> is processed, the flagged actions MUST NOT occur at the end of the parent's action processing.

dispatch actions with no name or with no target MUST be ignored.

XForms events MUST be fired.

Events MUST not prepend "xforms-" to the event name when firing.

For XForms events, the bubbles and cancelable attributes MUST be ignored.

Non-XForms events MUST be fired.

For Non-XForms events, the bubbles and cancelable attributes MUST be honored.

Non-existent targets MUST be ignored.

rebuild actions with no model attribute or whose specified model does not exist MUST be ignored.

The rebuild action MUST dispatch a rebuild event to the specified model.

recalculate actions with no model attribute or whose specified model does not exist MUST be ignored.

The recalculate action MUST dispatch a recalculate event to the specified model.

revalidate actions with no model attribute or whose specified model does not exist MUST be ignored.

The revalidate action MUST dispatch a revalidate event to the specified model.

refresh actions with no model attribute or whose specified model does not exist MUST be ignored.

The refresh action MUST dispatch a refresh event to the specified model.

setfocus actions with no control attribute or whose specified control does not exist MUST be ignored.

setfocus action must fire the xforms-focus event at the specified control.

If a setfocus element is targeted at a <repeat> element or a descendant thereof, the xforms-focus event MUST be dispatched to the corresponding control in the repeat item at the current repeat index

load actions with no resource attribute and no (model+ref or bind) MUST be ignored.

load actions with resource attribute *and* (model, ref or bind) MUST be ignored.

load actions with resource attribute MUST load the resource.

load actions with "bind"-specified resource pointed at no nodes MUST be ignored.

load actions with "bind"-specified resource pointed at multiple nodes MUST load the resource specified in the first node.

load actions with "ref"-specified resource pointed at no nodes MUST be ignored.

load actions with "ref"-specified resource pointed at multiple nodes MUST load the resource specified in the first node.

load actions with a failed link MUST fire the xforms-link-error event with the resource URI in it.

load actions with show="new" MUST NOT replace the current document with the new link and MUST show the new document somewhere else.

load actions with show="replace" MUST replace the current document with the new link.

load actions with no show attribute MUST be treated as "replace".

setvalue actions with no model+ref or bind attribute MUST be ignored.

setvalue actions pointed at an element with no text node child MUST create a textnode with the specified value as the first child of the element.

setvalue actions pointed at an element with multiple text node children MUST replace the first textnode with the specified value.

setvalue actions pointed at an attribute MUST set the attribute's value to the specified value.

setvalue actions pointed at a textnode MUST replace the textnode with the specified value

setvalue actions with no value attribute and no text MUST set the corresponding node to "".

setvalue actions with text and no value attribute MUST set the corresponding node to the text.

setvalue actions with value attribute and no text MUST set the corresponding node to the value.

setvalue actions with value attribute and text MUST set the corresponding node to the value.

setvalue actions with model+ref pointed at no nodes MUST set the corresponding node to the value.

setvalue actions with model+ref pointed at multiple nodes MUST set the first node in the set to the value.

setvalue actions with bind pointed at no nodes MUST set the corresponding node to the value.

setvalue actions with bind pointed at multiple nodes MUST set the first node in the set to the value.

send action must fire the xforms-submit event at the specified submission.

reset actions with no model attribute or whose specified model does not exist MUST be ignored.

reset action must fire the xforms-reset event at the specified model.

message actions with no [resource|src] and no bind/ref/model and no text MUST be ignored.

message actions with no level MUST be ignored.

message actions with a failed [resource|src] link MUST fire the xforms-link-error event with the [resource|src] URI in it.

message actions with [resource|src] link MUST display the message.

message actions with bind/ref/model link MUST display the message.

message actions with textnode link MUST display the message.

message actions with level="ephemeral" SHOULD allow processing to continue immediately and SHOULD NOT require user interaction to remove the disruption from the user's experience.

message actions with level="modeless" SHOULD allow processing to continue immediately.

message actions with level="modal" SHOULD NOT allow processing to continue until the user has explicitly agreed to continue.

message actions with level values that are recognized by the user agent MUST be ignored.