1. Usecase 1 – Upgrade Image
Vendor has a new Image for the VNF requiring Image upgrade for all the existing VNF Instances
Vendor works with the VNF Owner to define the workflow for upgrading the VNF Image
New VNF version includes the updated image and the workflow to upgrade the image from the previous VNF version to the current VNF version
Service is updated with the new VNF version and distributed
MSO deploys the workflow
On MSO receiving the VNF Upgrade request from VID/CCD/OMX. MSO executes the workflow previously deployed to Upgrade VNF

2. Usecase 1 – Upgrade Image contn..
Stop traffic is a API call to controller so controller can actually take the necessary steps to stop traffic Drain traffic is an API call to controller to allow for controller to confirm completion of all the in- progress activity in the VNF Create VNF is an API call to Openstack to instantiate the VNF All the steps are API calls from MSO to various systems with inter-dependencies

3. Who? - Users
Tooling is for the Designer(Workflow Designer)

4. High Level Solution
Activity Definition/Specification abstracts implementation details of the Activity from the Designer
Note: Activity is an extension or capability of SO, for example SO’s ability to invoke a Component API (Controller, A&AI, etc..). New Activities are developed as part of a specific ONAP release.
Activities are normally automated and in some cases manual
Activity Implementation can be based on BPMN, Java or any other scripting
API calls to other ECOMP components like controllers, SNIRO, Micro-Services, etc.
Re-usable building blocks/BPMN processes in MSO
Manual Task
Workflows shall be made of Activities with inter-dependencies between them
Enhance VNF and/or Service Model to include Operations and optionally Workflows implementing the Operations
Instantiation Workflow – Instantiate a VNF, which includes assignments, creation and configuration. i.e., what ever is required to for VNF to be deployed and serve/provide it’s functionality
Disconnect Workflows
Upgrade Workflow – Upgrade VNF from a particular version to later version of the Service or VNF Model
More..

5. SDC Component Diagram

6. 1. Manage Activity Specification & 2. Search/Get Activity SpecId
Name
Description or Purpose
Category - Categorization to help better experience to the Designer while building the work-flow
Input/Output Fields – Inputs/Outputs of the Activity needed to be specified by the Designer in context of workflow
Operations:
Create Activity Spec
Update Activity Spec Version
Submit Activity Spec Version
Create Activity Spec Version
Deprecate & Delete Activity Spec
Search & Get Activity Spec

7. 3. Manage Workflow Workflow Operations: Create Workflow Edit WorkflowId
Description or Purpose
Input/Output Fields – Inputs/Outputs of the Workflow needed to be specified by the Designer in context of VNF or Service Operation
Operations:
Create Workflow
Edit Workflow
Save Workflow

8. 4. Persist Workflow
Catalog to provide persistence API for workflow as an object. Catalog doesn’t need to know the contents of the object.
Operations
Create Workflow
Save Workflow
Delete Workflow

9. 5. Generate BPMN Workflow Artifact
Ability to generate a BPMN workflow Artifacts
Operations
Generate Workflow Artifact

10. Work Items
Workflow Designer for designing Workflow for MSO for purpose of VNF Change Management and Service Fulfillment
Workflow Editor - ZTE
UI to list Activities – ZTE
UI to enable User/Designer to specify Activity details(inputs & outputs) in context of a Workflow. Not required in ECOMP for – ZTE
Generation of standard BPMN artifact – ZTE
Provide a generic Integration(pluggable) Framework in ONAP SDC for various applications/functions like workflow – AT&T
Workflow Designer to integrate with the generic pluggable Framework provided by SDC - ZTE
Registration of Activity Specifications to SDC. i.e., upload Activity Specifications to SDC – Amdocs
UI to manage workflows associated to various VNF and/or Service Operations and Inputs - Amdocs
Include VNF and/or Service Operations and Inputs in TOSCA - Amdocs
Include workflow artifact reference in Service and/or VNF TOSCA Model – Amdocs