TR292H Mathematical Functions Definition and Collection v3.6.0

This document defines a set of mathematical functions and vocabulary to manage value ranges and composite functions. 

Intent requirements are often based on numerical values for properties with continuous value ranges, such as KPI or discrete values such as states. Furthermore, there might be dependencies based on other numerical or discrete concerns. Mathematical functions map input values into output values. They can do this for continuous value ranges or discrete sets of values. This can be very useful in intent to express conditional requirements or supplementary information such as utility that expresses the business value of an observed result. This document introduces mathematical functions as specialization of functions introduced by the function definition ontology TR292C. It provides the vocabulary for specifying custom functions and composite functions. Furthermore, this document pre-defines a collection of useful functions for common use cases in intent expression.