Values can be represented in a variety of units. However, to make queries against the data, we need to bring the compatible values - such as distance expressed in meters, kilometers or miles - to a common normalized value. Thus, we need a data item that expresses the normalized value of the claim.
In order to do that, we will have additional value attached to statement/qualifier/reference with normalized values - i.e. in addition to psv:, pqv: and prv: we also have psn:,pqn: and prn: respectively.
These values will be generated for now for values of type datetime and quantity only, as only these types need to be normalized.
The value will contain "normalized" value, as follows:
- For quantity, it will be the main unit value, converted according to conversion rules in configuration (TBD)
- Upper/lower bound values are converted too
- For datetime, it will be converted Gregorian ISO value, while the main value is converted to string value