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Historical note: the minutes for the previous project, the CVII Tech Stack, can be found here: CVII Technology Stack meeting notes

17th May 2023

• Minutes made a week later and so may be less complete
• Data Architecture Terminology.
  • Continued review discussion
  • Sync
    • Christian provided input offline about including Sync as he has discussed in his presentations.
    • Open question was how best to include it and preserve the fact that the functional descriptions can be combined in a product. So whilst it might be most likely in the State Storage as he has been using it, it could be elsewhere. Perhaps describe it as component itself, which can then be used by either State Storage or Server?
  • Data Feeders
    • Ulf feels Feeder suggests a uni-directional flow Northbound when it could be in both directions. Can we rename to something else? He suggests Bridge but is open to alternatives.
    • Steve also suggests Connector.
    • Steve will try rewriting the description using the suggested names.
• Diagrams
  • Steve has started recreating the Deployment Scenario diagrams from the 2023 Q1 Workshop in Miro https://miro.com/app/board/uXjVPoh2zow=/?share_link_id=262317958896 in DrawIO so they can be easily shared, and edited.
  • As a working area he has created the sub-folder Deployment_scenarios in the Data Arch scratch area of the Data Expert Group Google Drive.
  • First diagram to be converted was the top level Logical Architecture showing the Data Expert Group scope which can be found here Logical Architecture Overview.drawio.svg
    • This was a first pass conversion. Not yet looked to see if it needs resizing to fit into common use cases in A4 document or slide
  • Happy to get help in recreating the others..

10th May 2023

• Data Architecture Terminology.
  • Steve did first pass review and made some edits.
  • Got feedback from Felix.
  • Intention is that along with the diagrams this becomes the basis for 'logical component' discussion in the Data Expert Group
•  Diagrams
  • Christian: We should show that the data server/state storage combination in-vehicle can be reused in the cloud and mobile device as well, i.e. data centric architecture reuse of arch.
• PoC
  • Christian: Is this intended to be public?
  • Steve: Yes
  • Illustrations to show possibilities:
    • Covesa github all public
    • x86 docker
      • Major components of the basic 'lego':
        • VISS data server, e.g. WAII
        • State Storage, e.g. add Realm, Apache IoTDB
      • Step 1: DBs via WAII (CCS) State Storage component
      • Step M..N trials using the basic lego to prove/investigate various topics:
        • High frequency
        • Knowledge pyramid, AI at the edge
        • Multiple data models
    • Automotive H/W
      • Generic code could be implemented on Automative H/W for some appropriate topics, e.g Latency Southbound
    • Feedback:
    • Piotr: Could have a PoC variant that shows support for different OSs via vsock for example to show possibility of southbound data from various sources in the car.

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