'version'

[jpradocueva]

Model version is defined as a date.
The 'date' format differs in some of the models, e.g. '20190613' vs '2019-06-q13'

• activity
• alarm
• airquality

• do we agree to use date as a version?
• which date format should be followed?
• It is suggested that models with more than one version will have a single entry in the table, with the option to choose a different version date.