Add more docs

Issue-Id: DCAEGEN2-128
Change-Id: Ieda6d44d0e98bf1a29922ef95e605e7a08104111
Signed-off-by: Lusheng Ji <lji@research.att.com>

1 files changed, 38 insertions, 10 deletions

diff --git a/docs/sections/architecture.rst b/docs/sections/architecture.rst
index 8daa0d3b..8014ed49 100644
--- a/docs/sections/architecture.rst
+++ b/docs/sections/architecture.rst
@@ -4,24 +4,52 @@
 Architecture
 ============
 
-.. note::
-   * This section is used to describe a software component from a high level
-     view of capability, common usage scenarios, and interactions with other
-     components required in the usage scenarios.  
-   
-   * The architecture section is typically: provided in a platform-component
-     and sdk collections; and referenced from developer and user guides.
-   
-   * This note must be removed after content has been added.
-
 
 Capabilities
 ------------
+Data Collection Analytics and Events (DCAE) is the data collection and analysis subsystem of ONAP.
+Its functions include collection of FCAPs data from the network entitiess (VNFs, PNFs, etc), normalization and transportation of
+data, analysis of data, and generations of ONAP events which can be received by other ONAP components such as Policy for
+subsequent operations.
+
+DCAE consists of DCAE Platform components and DCAE Services components.  The following list shows the details of what are included
+in ONAP R1
+
+- DCAE Platform
+    - Core Platform
+        - Cloudify Manager (VM)
+        - Consul service (VM cluster)
+    - Extended Platform
+        - Docker Host for containerized platform components (VM).  It runs the following DCAE platform micro services (containers).
+            - Configuration Binding Servive
+            - CDAP Broker
+            - Deployment Handler
+            - Policy Handler
+            - Service Change Handler
+            - DCAE Inventory-API
+        - CDAP Analytics Platform for CDAP analytics applications (VM cluster)
+        - Docker Host for containerized service components (VM)
+        - PostgreSQL Database (VM)
+
+
+- DCAE Services
+    - Collectors
+        - Virtual Event Streaming (VES) collector, containerized
+        - SNMP Trap collector, containerized
+    - Analytics
+        - Holmes correlation analytics, containerized
+        - Threshold Crosssing Analytics (TCA), CDAP analytics application
 
 
 Usage Scenarios
 ---------------
 
+For ONPA R1 DCAE participates in all use cases.
+
+vDNS/vFW:  VES collector, TCA analytics
+vCPE:  VES collector, TCA analytics
+vVoLTE:  VES collector, Holmes analytics
 
 Interactions
 ------------
+