Finalize design and modeling documentation

Issue-ID: CPS-447
Signed-off-by: Bruno Sakoto <bruno.sakoto@bell.ca>
Change-Id: I58181dd7018319c46d465c78b8299c3f316f455e
diff --git a/docs/content/modeling.rst b/docs/content/modeling.rst
index b8bf91e..8871a81 100644
--- a/docs/content/modeling.rst
+++ b/docs/content/modeling.rst
@@ -8,4 +8,34 @@
 CPS Temporal Modeling
 =====================
 
-.. warning:: Draft
+Event Structure
+===============
+
+Data manipulated by both CPS Core and CPS Temporal to represent a Data Updated
+Event is a JSON structure that is defined by following Json Schema:
+
+* :download:`cps-data-updated-event-schema.json <../_static/event-schema/cps-data-updated-event-schema-v1.json>`
+
+And following is an example of an event compliant with this schema:
+
+.. code:: json
+
+    {
+        "schema": "urn:cps:org.onap.cps:data-updated-event-schema:v1",
+        "id": "38aa6cc6-264d-4ede-b534-18f5c1f403ea",
+        "source": "urn:cps:org.onap.cps",
+        "type": "org.onap.cps.data-updated-event",
+        "content": {
+            "observedTimestamp": "2021-06-09T13:00:00.123-0400",
+            "dataspaceName": "my-dataspace",
+            "schemaSetName": "my-schema-set",
+            "anchorName": "my-anchor",
+            "data": {
+                "interface": {
+                    "name": "itf-1",
+                    "status": "up"
+                }
+            }
+        }
+    }
+