ONAP R8 Resource IM Call 2021-5-17

• Date and Time: 2021, May 17th, 9pm~10pm Beijing Time, 9am~10am US Eastern

• Meeting Room: https://zoom.us/j/97595070639

• Meeting Recording:  zoom_0.mp4

• Meeting Chat Log:  

Agenda:

• Agenda bashing - 5 minutes

• Model Proposals
  
  

  • allotted resource - 0 minutes

  • 5G service - 0 minutes

  • ETSI CNF support - 0 minutes

  • PNF instance model - 0 minutes

  • CPS model - 0 minutes

  • Topology model - 0 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

  • reminder for filling R9 high level requirements: https://lf-onap.atlassian.net/wiki/display/DW/ONAP+R9+Modeling+High+Level+Requirements
    
    

    • new requirements may be added after more use case presentations

    • plan to review intent based networking model proposals next week

  • time change for modeling subcommittee call

    • Andy has discussed with Ben, and plan to not change the time for now, will have further discussion on modeling subcommittee call

• Joint call with use case realization team

  • R9 use case & requirements: https://wiki.onap.org/pages/viewpage.action?pageId=99681185

  • schedule of use case realization call: https://wiki.onap.org/display/DW/Use+Case+Realization+Meeting+Register+MoM

  • major use cases of ONAP: https://wiki.onap.org/display/DW/ONAP+Major+Use+Cases

  • next step:

    • Ben will help invite use case owners to have a presentation in the following modeling calls

• 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

    • latest updates:

      • Thinh has presented the alternative package solution in the CNF taskforce call, could be discussed in future calls

      • CNF requirements collaboration pending discussions as well, could be discussed in this week's CNF taskforce call

  • 5G service / CPS model

  • PNF instance model

    • reverse engineering

      • gendoc has been created and is presented by Jacqueline

        • the document is useful because of easier understanding

        • for example, the description shows there are several attributes/models marked not working for now ("not correctly populated", etc.)

      • question is which content to focus for now (considering the document has 500+ pages)

        • Jacqueline prefer to start with PNF model (as originally proposed)

        • Andy agrees to start with PNF, and can further look at topology related items

        • Xu suggests to start with PNF, and then look at current model proposal related topics

      • may need to have a seperate directory to host the AAI models, to avoid potential non-compatible issue of papyrus

      • Andy suggests to mark all the models in experimental stereotype for now

      • Jacqueline will help upload the gendoc document

  • 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

    • Andy has helped to create a high level requirement for the topology model

      • expecting ORAN to provide relavent use cases

      • Martin and Andy are aware of the different views of topology model presented last week by Cagatay

      • mainly triggered by ORAN WG10, also related to WG1's slicing use case, etc.

      • how to model different layers, physical, logical topology, etc.? current methodology is using UML/papyrus to capture the models

    • Latest updates:

      • Martin is working on the TAPI model, and has discussed with the SON use case team to receive feedback from them

• 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