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Following input given in the W3C data TF:

• Signal Observation metadata
  Quality
  • Sampling/Compression methods
  • Transmission method
  • Consent requirements
  • Retention time
    
    
• Signal Usage metadata
  • Data sensitivitySensitivity
  • Retention timeQuality
  • Consent requirementsUnit

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Record:

• A container to represent one single measured data value
• Subtypes (Record Types) indicate which Signal has been measured.
• Records are used to represent data with associated metadata, which are different depending on the Record Type, as needed for different cases
• Example of possible record types:
  • Just the value.
  • The value plus a timestamp
  • The value plus a timestamp plus a timestamp accuracy information
  • The value plus additional qualitative information
  • The value plus a timestamp plus the location (e.g. GNSS position) where a measurement was performed.
• All of the above may also specify the signal name, or not:  Some record types may need to specify the signal it is referring to, but others might not, because the record is delivered in a context where it is known which signal is being measured.

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