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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+.. (c) by Yingjun Li (HUAWEI) and Harry Huang (HUAWEI)
+
+OPERA Project Overview
+======================
+
+Since OPNFV board expanded its scope to include NFV MANO last year,
+several upstream open source projects have been created to develop
+MANO solutions. Each solution has demonstrated its unique value in
+specific area. Open-Orchestrator (OPEN-O) project is one of such
+communities. Opera seeks to develop requirements for OPEN-O MANO
+support in the OPNFV reference platform, with the plan to eventually
+integrate OPEN-O in OPNFV as a non-exclusive upstream MANO. The
+project will definitely benefit not only OPNFV and Open-O, but can
+be referenced by other MANO integration as well. In particular, this
+project is basically use case driven. Based on that, it will focus
+on the requirement of interfaces/data models for integration among
+various components and OPNFV platform. The requirement is designed
+to support integration among Open-O as NFVO with Juju as VNFM and
+OpenStack as VIM.
+
+Currently OPNFV has already included upstream OpenStack as VIM, and
+Juju and Tacker have been being considered as gVNFM by different OPNFV
+projects. OPEN-O as NFVO part of MANO will interact with OpenStack and
+Juju. The key items required for the integration can be described as
+follows.
+
+.. figure:: images/key_item.png
+ :alt: key item
+ :figclass: align-center
+
+ Fig 1. Key Item for Integration
+
+Open-O is scoped for the integration
+====================================
+
+OPEN-O includes various components for OPNFV MANO integration. The initial
+release of integration will be focusing on NFV-O, Common service and Common
+TOSCA. Other components of Open-O will be gradually integrated to OPNFV
+reference platform in later release.
+
+.. figure:: images/openo_component.png
+ :alt: openo component
+ :figclass: align-center
+
+ Fig 2. Deploy Overview
+
+The vIMS is used as initial use case
+====================================
+
+based on which test cases will be created and aligned with Open-O first
+release for OPNFV D release.
+
+- Creatting scenario (os-nosdn-openoe-ha) to integrate Open-O with OpenStack Newton.
+- Integrating with COMPASS as installer, FuncTest as testing framework
+- Clearwater vIMS is used as VNFs, Juju is used as VNFM.
+- Use Open-O as Orchestrator to deploy vIMS to do end-2-end test with the following steps.
+
+1. deploy Open-O as orchestrator
+2. create tenant by Open-O to OpenStack
+3. deploy vIMS VNFs from orchestrator based on TOSCA blueprintn and create VNFs
+4. launch test suite
+5. collect results and clean up
+
+.. figure:: images/vIMS_deploy.png
+ :alt: vIMS deploy
+ :figclass: align-center
+
+ Fig 3. vIMS Deploy
+