Go to Deriscope's documentation start page

Value0

Key Value in Valuation refers to the value assigned to the Quotable object entered in Key Valuation::Quotable as of today's date.
It is expected to be an object of type
Probability Measure
In most cases its type will equal the Probability Measure's subtype
Exact Number, in which case it will appear to the user interface as a regular number for simplicity purposes.