DB Issue: Unit is attached with Value table

[arne-broering]

Consequently, it is costly to determine the used unit for a specific observed property. This is needed for creating SensorML documents for a procedure (output element needs unit).

TODO: Clarify with EEA to change DB model.

[ridoo]

Clarification includes the need to have hamonized UOM for a procedure. Having multiple UOM adds complexity in database. Also it leads to several output sections for the same phenomenon in the procedure's SensorML (DescribeSensor response format).

[ridoo]

http://taskman.eionet.europa.eu/issues/15595