O6: Expand`observationLevel` with `interval` in observations table

[sannegovaert]

This is suggested by the Safe and Sound project to accommodate Camtrap DP for bioacoustic use cases. See O6 in the project report for context.

term

observationLevel

definition/rationale

Observations can refer to a subset of a media file. This can be expressed by extending the controlled vocabulary for observationLevel to “interval” or “subset” (in addition to “event” and “media”). Suggested as #390

• description: Level at which the observation was classified. media for media-based observations that are directly associated with a media file (mediaID). These are especially useful for machine learning and don't need to be mutually exclusive (e.g. multiple classifications are allowed). event for event-based observations that consider an event (comprising a collection of media files). These are especially useful for ecological research and should be mutually exclusive, so that their count can be summed. interval for observations that are associated with a subset of a media file. These are especially useful for observations in a continuous recording.
• type: string
• required: true
• enum: media, event, interval
• example: media

recommendation

update