X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=docs%2Fclamp%2Facm%2Fdesign-impl%2Fparticipants%2Fparticipant-intermediary.rst;h=42ae2d5f054a5375fdeec3fc40fc4228ee6ce3eb;hb=580de3ad1abeac9001d5f5190e12dd687fa7d0fc;hp=532153899405c07fb28ef1c0bf38bbb11e1d6cbc;hpb=d3ea2362501e3b51a709f8e2671f97ec5aad1349;p=policy%2Fparent.git

diff --git a/docs/clamp/acm/design-impl/participants/participant-intermediary.rst b/docs/clamp/acm/design-impl/participants/participant-intermediary.rst
index 53215389..42ae2d5f 100644
--- a/docs/clamp/acm/design-impl/participants/participant-intermediary.rst
+++ b/docs/clamp/acm/design-impl/participants/participant-intermediary.rst
@@ -26,6 +26,7 @@ Inbound messages to participants
 - AUTOMATION_COMPOSITION_DEPLOY: a message received from clamp-acm runtime server for a clamp-acm deploy with clamp-acm instances
 - PARTICIPANT_PRIME: a message received from clamp-acm runtime server for a participant update with tosca definitions of clamp-acm
 - PARTICIPANT_STATUS_REQ: A status request received from clamp-acm runtime server to send an immediate ParticipantStatus from all participants
+- PROPERTIES_UPDATE: a message received from clamp-acm runtime server for updating the Ac instance property values
 
 Outbound messages
 -----------------
@@ -78,6 +79,14 @@ Design of "issues automation composition commands to automation compositions" -
 - Participant-intermediary will receive AUTOMATION_COMPOSITION_STATE_CHANGE message and sends AC-element details to participants
 - Each participant performs its designated job of undeployment by interacting with respective frameworks
 
+
+Update of an Automation Composition Instance
+--------------------------------------------
+- AC-runtime updates the instance properties of the deployed Ac instances
+- it triggers the execution to send a broadcast PROPERTIES_UPDATE message
+- the message is built by AcElementPropertiesPublisher using the REST request payload (to fill the list of elements with the updated property values)
+- Participant-intermediary will receive a PROPERTIES_UPDATE message and stores the updated values of the elements on ParticipantHandler
+
 Design of "issues automation composition commands to automation compositions" - case LOCKED to UNLOCKED
 -------------------------------------------------------------------------------------------------------
 - AUTOMATION_COMPOSITION_STATE_CHANGE message with instantiation details and UNLOCK order state is sent to participants