NullablePercentage

Overview

Abstract data type

A quantity given as a percentage. Although percentage is not a physical quantity type in the strict sense, it is modeled using the same pattern as for simple physical quantity types. NullablePercentage is abstract and has two concrete subtypes:

• a Percentage is an actual value for a quantity with a numerical value and a unit of measurement;

• a NullPercentage is a null value that explicitly indicates the absence of an actual quantity.

Subtypes

• NullPercentage

• Percentage

Implementation in Proteus Schema

All data attributes with type NullablePercentage are implemented as DEXPI generic attributes for physical quantities.

Example

See the examples for Percentage and NullPercentage.