--- /dev/null
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+Architecture
+============
+
+
+
+Capabilities
+------------
+Provides the core Service Logic Interpreter (SLI) functionality, used to execute directed graphs (DGs). Directed graphs allow service designers to define the
+logic to be executed within the SDN controller in a graphical format which can be
+updated in real time, without a need to restart the controller.
+
+.. toctree::
+ :maxdepth: 1
+
+ nodes.rst
+
+