Updated Testing section

Change-Id: I6e7bf4b85100b60e8e24ed6c0b65cc19b961f4ba
diff --git a/testing/about_system_tests.rst b/testing/about_system_tests.rst
new file mode 100644
index 0000000..b1ec5de
--- /dev/null
+++ b/testing/about_system_tests.rst
@@ -0,0 +1,41 @@
+..
+   SPDX-FileCopyrightText: © 2021 Open Networking Foundation <support@opennetworking.org>
+   SPDX-License-Identifier: Apache-2.0
+
+About
+=====
+
+The goal and objective of SD-Core test automation is to build a framework that
+provides highly scalable and low maintenance code which will help cover various
+categories of tests.  Framework includes libraries and tools that allows both
+component level and integration level tests. Robot Framework will be used for
+covering integration tests. Component level test coverage have been
+accomplished by leveraging the existing test frameworks that were developed in
+their respective projects. Component level tests include tests for SD-CORE areas.
+
+Test Frameworks
+---------------
+
+The following diagram outlines each SD-Core component, followed by an online
+of the test frameworks used:
+
+.. image:: images/4G-Common-Testing.png
+  :width: 840
+  :height: 540
+  :alt: Aether Overview Diagram
+
+.. list-table:: Test Frameworks
+  :widths: 5 3
+  :header-rows: 1
+
+  * - Aether Core Component
+    - Test Framework
+  * - SD-Core
+    - `NG40/NG4T <https://www.ng4t.com/>`_
+
+Test Automation
+---------------
+
+`Jenkins <https://www.jenkins.io/>`_ is the primary automation server that is
+used to help trigger our automated tests. All Aether Jenkins jobs are
+created and run on the Aether Jenkins instance.