ONAP R9 Resource IM Call 2021-9-6

• Date and Time: 2021, Sep 6, 9pm~10pm Beijing Time, 9am~10am US Eastern

• Meeting Room: https://zoom.us/j/97595070639?pwd=ajFTZGdlTmRVNjU5MSt1YVpycmlrdz09

• Meeting Recording:  

• Meeting Chat Log:  

Agenda:

• Agenda bashing - 5 minutes

• Model Proposals
  
  

  • ETSI CNF support - ? minutes

  • CNF runtime model - 10 minutes

  • PNF instance model - ? minutes

  • CPS model - 0 minutes

  • Topology model - ? minutes

• Modeling Documentation - 0 minutes

• Model proposals:
  
  

  • Abstract Topology Model

• Modeling requirements:

  • https://lf-onap.atlassian.net/wiki/display/DW/ONAP+R9+Modeling+High+Level+Requirements

• Related information:

  • Allotted Resource for Network Slicing

  • R8 5G Service Modeling

• Clean/Approved models:

  • ONAP Information Model - Clean and approved models across ONAP releases

• Model Specification:

  • Honolulu release: https://docs.onap.org/projects/onap-modeling-modelspec/en/honolulu/ONAP%20Model%20Spec/im/index.html

• Agenda bashing

• Model Proposals
  
  

  • ETSI support for CNF model

    • R9 DM proposal: https://lf-onap.atlassian.net/wiki/pages/viewpage.action?pageId=16463007

      • aligned with SOL001 v4.2.1, package format is still under discussion

      • will ask for approval after SOL001 v4.2.1 is stable

    • a proposal of updating the information model documentation is planned in R9

    • Updates：

      • Fred presents the latest progress: a wiki page on IFA011 v4.2.1 changes, ETSI IFA011 v4.2.1 Changes to ONAP Resource Model.

      • also working on corresponding DM and papyrus changes

  • CNF runtime model

    • IM: Simplified K8S Resource Model - IM

    • Jacqueline also comments on the wiki page, about the description/definition of k8s-resource

      • will continue discussion on the wiki / in the following calls

      • current proposal (with examples added): k8s-resource are objects that represent a concrete instance of a concept on one k8s cluster, like a pod, namespace, stateful set, service, persistent storage, etc.

      • double check whether k8s-resource can contain other k8s-resources

  • 5G service / CPS model

  • PNF instance model

    • reverse engineering
      
      

      • feedback to A&AI team:

        • some relationship lack description, and the existing description may not be meaningful enough

      • current status: AAI Schema Reverse-Engineering to Papyrus

    • migrating to new version

      • poll ongoing

  • Topology model

    • Proposal: https://lf-onap.atlassian.net/wiki/display/DW/Abstract+Topology+Model

      • Martin will update the models with the IM sketch

    • Model Sketch: https://wiki.onap.org/display/DW/Proposed+Topology+IM+Sketch
      
      

      • inspired by TAPI model to add "link", "connection" classes

      • looking at ORAN use cases and see if the models can fulfill the requirements

      • TAPI presentation may be found here: otcc2019.KS.002_TAPI_Concepts_Topology_Connectivity.pptx

    • Latest updates:

      • Tony provides some comments on the model sketch:

        • simplify the "service" models

        • relationship between the topology model and ONAP IM / root model

          • currently working on high level concepts, discussing whether we need to have certain objects in the ONAP IM, and maybe part of the topology model

          • e.g., Connectivity, EndPoint

        • from developer's perspective, suggest to avoid too many hops to access the models/info

        • intent part needs further discussion, and suggest to focus on aspects first

      • Model discussed during the meeting (for the abstract models)

        • Open

          

        • will continue discussion next week

      • Tony will take 3 week's off, and will be back in Oct

• Modeling Documentation
  
  

  • gendoc template discussion:

    • whether the description only applies for a navigatable end of an association

    • add relationship documentation to the UML guideline: ONAPMODEL-28: Using the Documentation Property for RelationshipsOpen

    • UML principle wiki page:

      • Principle and Guideline for Information Model Proposal Using Papyrus (Draft)

      • review the updates to the Gendoc requirements part

        • Michela suggest whether it's possible to add information of associations into the class definitions

          • Xu will investigate it offline

      • Using Papyrus for Modeling updates