ONAP R9 Resource IM Call 2021-6-28

• Date and Time: 2021, June 28, 9pm~10pm Beijing Time, 9am~10am US Eastern

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

• 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 - 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

  • vacation plan:

    • Andy will take vacation next week

    • Jacqueline will be off in August

    • Fred will be off a couple of days in July

• 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：

      • SOL001 is delayed and expected to be stable at the end of July

      • Fred is preparing the IM updates aligning with the latest DM proposal, hope to be discussed next Monday

      • the alternative approach (ASD) is still under discussion, a concrete decision is still needed

  • CNF runtime model

    • Proposal:

      • for Istanbul: add some necessary information as an enhancement of vf-module, to allow components to query k8s objects

      • for Jarkata: define a cnf-module, to store information like compute (pod), storage, etc.

      • the two sub-proposals can co-exist

    • Update:

      • poll ongoing: Simplified K8s Resource Model

    • AP:
      
      

      • will continue how to document the information model next week

        • 2 approaches: 1) create an abstract model capturing the current proposal; 2) wait till the A&AI schema to update, and create the IM through reverse engineering

        • Xu will help create the initial draft for discussion

  • 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

  • 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:

      • Adding concepts like clients and servers, further discussion are needed to for the context of the new terms

      • also whether the whole objects should be put under "ManagedFunction" needs further discussion

• 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