+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+
+AAI-esr-server
+------------------------------------------------
+
+ESR provide a way to register external system which not included in ONAP system, mainly inclouded VIM/VNFM/EMS/thirdparty SDNC. esr-server as the backend of exteral system register service mainly include the system register information preprocessing, system available check.
+
+ESR comprises two modules: the esr server module and the esr gui module. And both esr service and esr gui belongs A&AI.
+
+- AAI
+ - ESR server Module
+ - ESR gui Module
+
+.. toctree::
+ :maxdepth: 1
+
+ offeredapis.rst
+
+