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This page intends to contain the agenda for next meeting and notes from previous meeting. At the bottom is a template for the agenda. General agenda points like discussion on PRs and issues may be skipped if discussion on prioritized topics takes too long time.

Draft Meeting notes 2023-03-14


  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • Intro to VSS - 16.00 CET Tomorrow
    • VSS-Tools - Line endings JSON?
    • Issue 526
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting

Meeting notes 2023-03-07

Meeting notes 2023-02-28

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • INFO: VSS 3.1 released
    • Wanted features for VSS 4.0 end of April (before AMM?)
      • Structs support, but what more?
      • Moving documentation to new repo?
        • Meeting notes -seems reasonable
    • AMM - what sessions are needed/wanted. What do we want to cover in the workshops
      • Ulf: Slot/presentation on how evolving VSS ("multiple trees")
        • Erik: Related to charging station tree discussion, we need to discuss governance of new catalogs, like where and how shall charging station tree be stored and maintained
      • Sebastian: CAN Feeder - dbc mapping
      • Sebastian: Security approaches - KUKSA tokens changes and comparison to VISS
      • Adnan: VSSo and Taxonomy - see https://github.com/COVESA/vehicle_signal_specification/issues/548
    • Open PRs - quite a lot
    • VSS structure
  • Decision on old open PRs
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting

Meeting notes 2023-02-21

Meeting notes 2023-02-14

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • Struct support
      • Status report
      • Exporters - how do we expect them to handle struct data
        • Struct information generated in same file or other file
        • Likely straightforward to implement support in vspec2json, vspec2csv, vspec2yaml
        • Volunteers for vspec2binary, vspec2ddsidl, vspec2franca, vspec2graphql?
          • And contrib tools: vspec2protobuf, vspec2ttl
          • Daniel Alvarez will likely look at the vspec2ttl
          • Ulf feel responsibility for binary tool.
          • Sebastian can check with those who developed vspec2ddsidl
        • AP: Erik to update or create issue to track what is needed for the major release in April
    • Workshop this week
      • Agenda at Data Expert Group - Workshop 2023 - Q1
      • All welcome
      • Attendees: erik, Ulf, Daniel (partially, 14-16 CET), Adnan, Sebastian (partially, +0.25)
      • AP: Paul to cancel related COVESA meetings during the same timeslots.
    • "Extra day" at AMM for deeper discussions, possibly Friday after AMM, possibly half-day
    • New Pull requests
  • Decision on old open PRs
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting
    • Planning for minor release (around end of February, possibly the week Feb 27th - March 3rd)
      • What to include and what not to include:
        • Possibly wait with left/right - driver/passenger conversion until major, as breaking backward compatibility

Meeting Notes 2023-02-07

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Walk through Pull Requests and Issues VSS
  • Walk through Pull Requests and Issues VSS-Tools
  • Topics on hold
  • Older issues VSS & VSS-tools
  • Prioritized topics for next meeting

Meeting 2023-01-31

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Walk through Pull Requests and Issues VSS
  • Walk through Pull Requests and Issues VSS-Tools
  • Topics on hold
  • Older issues VSS & VSS-tools
  • Prioritized topics for next meeting


Meeting 2023-01-24

Work Package for Struct Proposal:
Details of the proposal in [PR 511](https://github.com/COVESA/vehicle_signal_specification/pull/511/)

A. Minor release with experimental struct support  
1. vss-tools can take in a types spec file and process sensor tree and the type tree together. struct/type support will be marked as an experimental feature.
    a. Syntactic check of struct definition
    b. Semantic check of type references in sensors
    c. Demonstrate working using the JSON exporter
2. Add disclaimer/warning when customer is using experimental feature 
3. Warning in exporters that structs are not yet supported
4. Warning in overlays that structs are not yet supported
5. Experimental feature documentation
Effort: 3 weeks

B. Exporters release  
1. Add support for struct types in other text-based available exporters in vss-tools - CSV, YAML
Effort: 1 week

C. Major release  
1. Overlay support
2. Documentation update
3. Add support for non-text exporters as needed - protobuf, DDSIDL, etc.
4. Add guidance around when and how to use struct types
Effort: 4 weeks


Meeting 2023-01-17

If you have a topic you want to prioritize please add it here. We do however have the ambition to regularly discuss recent issues and pull requests, so no need to explicitly mentions a PR unless it needs to be prioritized:

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • Neil Puthuff (RTI) presenting some initial observations as new to COVESA/VSS
    • Ford proposal - Fleet based range prediction
      • Christoph Schierjott presents EV Charging Event Data Aggregation Project
      • Data upload of various data to cloud
      • Cloud calculates correction factor individually and sends down to vehicle to correct fleet range prediction
    • Power Optimize
      • Mobis Architecture
        • Intention is to have a power manager that will select scheme, either based on user request or for example based on that remaining power drops below 20%
      • Pre-information Bosch proposal
        • Erik: Bosch has some ideas on representation that will be presented in the Power Optimize meeting this week
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting

Meeting 2023-01-10

If you have a topic you want to prioritize please add it here. We do however have the ambition to regularly discuss recent issues and pull requests, so no need to explicitly mentions a PR unless it needs to be prioritized:

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • None
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Information from Paul
    • Big interest at CES
    • We need to have a bigger discussion late January or February to how to simplify use of VSS.
    • Paul to discuss with Data Expert Group (Erik, Adnan) on how to proceed.
  • Prioritized topics for next meeting

Meeting 2022-12-20


  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • Aggregate vs. structs - when do we see it need to be kept
      • From last week - Ulf/Erik: In favor of deprecating/removing aggregate keyword
      • Since then: Ulf requested a credible example, Erik stated that if we are to keep it we should better propose/specify how tools shall handle it
      • Adnan: Allow aggregate on deployment level, can use it when needed. For now good to only have it as information.
      • Krishna: Thinks aggregate makes changes, struct does not affect it. If we want to depricate we can do it later
      • Ulf: Does not have a strong opinion
      • Adnan: Good to document when structs vs aggregate shall be used
      • Erik: Can update the PR
      • Erik: Do you Krishna have interest in doing actual work.
      • Krishna: In January will start working on it, can help Erik
      • Erik; Then we can discuss later when we think it will be ready for VSS 4.0 release
    • Information: Overlays after expansion
      • Internal Bosch discussion if it would be better to refactor tooling so that only one parameter needed and tool is "smart enough" to deduce if given path refers to extended entity or not.
    • Discussion: PowerOptimize PR
      • Chandra: Intention to have one branch in each area, for infotainment we see brightness and audio volume
      • Chandra: Does not intend to duplicate, only want one signal, need only one
      • Erik: Isn't PowerOptimize only one of many use-cases for e.g. brightness, why need a PowerOptimize branch
      • Chandra: If scattered more difficult to find
      • Sebastian: OEM needs to decide what is part of his power optimization, do not understand the value of having them in separate branch
      • Adnan: What is difference
      • Pradeep: Adding a feature set, complete algorithm,
      • Adnan: If you are only proposing values, then it makes sense
      • Sebastian: Alternative usages could be e.g. overlay
      • Chandra: When we explain we see some signals are duplicated
      • Adnan: Best solution would if you prepare and show architecture on how it is intended
      • Adnan: Have not seen scope. Like to learn how
      • Pradeep: Do you have any public link describing how it is supposed to work.
      • Adnan: if you create some simple document you can attach it, then we can try to find best way
    • UUID elements
      • Adnan: Is anyone using UUIDs at the moment
      • Sebastian: We have never used them
      • Adnan: We saw a potential of UUID, could help versioning. We could UUID hash to validate. Has anyone any ideas. Otherwise we might create improvement proposal.
      • Sebastian: UUID are as of today generated based on tree structure.
      • Adnan: We need more, e.g. history. How do we move leave but keep UUID.
      • Sebastian: Could be a hash of only name/description/....
      • Erik: Please Adnan create an issue and ask if someone use UUIDs - if not you are free to do anything.
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting
    • Note: Dec 27th cancelled
    • Meeting as usual Jan 3rd

Agenda for Meeting 2022-12-13


  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
    • Aggregate vs. structs - when do we see it need to be kept
      • Ulf/Erik: In favor of deprecating/removing aggregate keyword
      • Erik: Seems proposal is quite stable, lets wait discussing work packages until Jrishna is back, as he seemed interested in implementing in vss-tools
    • Summary for vote of Allowed (https://github.com/COVESA/vehicle_signal_specification/issues/502)
      • vote result: allow int and float for now
    • Meeting cancellations due to new year
      • Availability of participants Dec 20th?
      • Suggest cancelling Dec 27th?
      • Availability of participants Jan 3rd? (Erik unavailable)
      • Decision: Cancel Dec 27th, wait with decision on Dec 20th and Jan 3rd
      • Availability: (Paul: all, Ted: all,  Umang: all, Ulf: all)
      • Erik to check with Adnan (and Krishna)
    • Open Pull Requests (vss+tools, except struct) - approve/object before next week.
      • See PRs
    • Information: New issue for proposal from last week
    • Information: Overlays after expansion
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting

Meeting 2022-12-06


  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting


Meeting 2022-11-29


Agenda Template

  • Compliance statement - TBD
  • Welcome and agenda discussion - anything that needs to be added?
  • Prioritized topics
  • Decision on old open PRs
  • Open Pull Requests VSS
  • Open Pull Requests VSS-Tools
  • Issues VSS
  • Issues VSS-Tools
  • Prioritized topics for next meeting



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