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Wednesday 2021-02-17

Workshop preparation

Shortlist of working items:

• General efficient message format (JSON and Binary).  For use in many contexts, e.g. MQTT, and SOME/IP and other.
  • For JSON, consider VISS spec
  • VISS spec also has a "compressed" format (unique to VISS)
  • Discussion about having a more "standard" format for binary/efficient encoding.  MsgPack is somewhere in between (like compressed/binary JSON) whereas describing a schema in Protobuf or AVRO or similar will generate an efficient encoding from the schema.
• Define mapping to AUTOSAR technologies, ARA:COM (AUTOSAR XML) and/or SOME/IP or DDS specifically.  In other words how is a signal definition converted to a 'Service'?  Or should it simply be observable properties (Fields in SOME/IP).
• The AUTOSAR spec Signal2Service seems still unclear to many.  Perhaps further investigation required.
• Can we define the actual purpose of the specification?  If so, there is opportunity for any one here to propose potential solutions or to 'unstuck' this activity somehow.

Wednesday 2021-02-10

MQTT (and general design) discussion

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