.. 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 web pages, and all resources that 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** containes 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 auditing data, artifacts and data model objects.
-Interactions
-------------