Alignment for sensor-data metadata acquisition

[rcrswld]

Right now, ontology and SHACL is defined by @konierik .
It is still unclear, how the metadata can be generated - ideally automatically - in a next step.

Goal:
[ ] metadata alignment
[ ] definition of a metadata example for an explicit data asset sample
[ ] development of a extractor

[thomassedlmayer]

Part of sensor data metadata can already be automatically generated when converting raw sensor data to OSI trace files by using the pcapng2osi converter (see here; find a metadata srmd example in the 'example' folder). Currently, this metadata ends up being in the SRMD format but with some adaptation the converter could also generate whatever format is required for the Gaia X infrastructure.

Though, the data providers would be responsible to extend the automatically generated metadata with further recommended metadata fields that we defined in the metadata schema (see here). E.g. information on calibration and references to corresponding calibration measurements, weather/road conditions, content description, etc.

[rcrswld]

Alignment with sensor-data working group:
Assignees will prioritize most important and automatically extractable metadata and check if they are all included in the actual ontology-draft from @konierik .
Maybe also propose metadata for additional data/services you want to offer in the sensor-context or related data which is required for using the sensor data in other use cases (e.g. reference data).