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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+==========================
+Vitrage Resource Processor
+==========================
+
+https://blueprints.launchpad.net/vitrage/+spec/entity-graph-change-notifications
+
+When the Entity Graph is changed, different services would like to be informed of the change, and perform operations
+accordingly.
+
+Problem description
+===================
+
+When the Entity Graph is changed, different services would like to be informed of the change, and perform operations
+accordingly. Such as:
+(1) When edges \ vertices are added \ removed, the Vitrage Evaluator will run the subgraph matching algorithm on the
+graph to find the templates which are matching and perform required actions.
+(2) When properties of existing edges \ vertices are modified, this can also impact subgraph matching outcome and thus
+the Vitrage Evaluator will need to be notified.
+
+Proposed change
+===============
+
+For each CRUD operation on the Entity Graph, we will support adding listeners that can be notified, and receive updates
+when each change occurs. The update must include information about each change.
+
+Alternatives
+------------
+
+None
+
+Data model impact
+-----------------
+
+None
+
+REST API impact
+---------------
+
+None
+
+Security impact
+---------------
+
+None
+
+Pipeline impact
+---------------
+
+None
+
+Other end user impact
+---------------------
+
+None
+
+Performance/Scalability Impacts
+-------------------------------
+
+None
+
+
+Other deployer impact
+---------------------
+
+None
+
+Developer impact
+----------------
+
+None
+
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+	alexey_weyl <alexey.weyl@alcatel-lucent.com>
+
+Work Items
+----------
+
+None
+
+Future lifecycle
+================
+
+None
+
+Dependencies
+============
+
+None
+
+Testing
+=======
+
+None
+
+Documentation Impact
+====================
+
+None
+
+References
+==========
+
+None