X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=docs%2Farchitecture.rst;h=c2e899929da08776850e4557cbf9b863b4b5d288;hb=ce098ef13dd6786e7e2a2a04466e72efa3ba9242;hp=8daa0d3bc593089ed9d29a0477bacdc65def7623;hpb=587eafab056b3b4b9030fc08c62857262f81d417;p=sdc.git

diff --git a/docs/architecture.rst b/docs/architecture.rst
index 8daa0d3bc5..c2e899929d 100644
--- a/docs/architecture.rst
+++ b/docs/architecture.rst
@@ -1,27 +1,37 @@
 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
 .. http://creativecommons.org/licenses/by/4.0
 
+============
 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.
+SDC As Part of ONAP
+===================
+
+.. image:: images/SDC_In_ONAP.png
+
+High Level Architecture
+=======================
 
+The following diagram shows the high-level relationship between the system components:
+
+.. image:: images/High_Level_Architecture_SDC.png
+
+The SDC architecture uses the Jetty server as an application server.
+
+- The **Jetty front end**:
+   - supplies the static content of the web pages and all the resources that are required by the GUI
+   - serves as a proxy for the REST API requests coming from the GUI
+   
+  Every request originating from the GUI is passed to the Jetty front-end server before it is executed.
 
-Capabilities
-------------
+- The **Jetty back end** contains all the logic for the SDC.
 
+SDC uses two storage components: Elastic Search(ES) and Cassandra
 
-Usage Scenarios
----------------
+- **Elastic Search** is used to index the auditing data received from different operations in the SDC.
 
+  This information can then be analyzed with Kibana. The **Kibana server** enables statistical analysis of the operations done, according to the business logic.
+  
+- **Cassandra** is used to store audit data, artifacts and data model objects.
 
-Interactions
-------------