This ontology provides a variety of operators designed for use with specifications that dictate that the value for some characteristic must be in some range. Two common use cases for these operators are:
- Version dependencies. For example, one ontology might depend on the version number of an imported ontology being in a certain range.
- Product specifications. For example:
- A product specification for a lotion requires that the concentration of a toxin must be less than so many parts per billion.
- A product specification for a smartphone requires that the battery life is greater than so many hours.
Operators provided include
- equal to
- greater than
- greater than or equal to
- less than
- less than or equal to
Also included is the ability to specify a target value with an absolute or percent variance around that target.