Context dependent
type: Concept
definition: Whether a higher or lower value is better depends on context; there is no universal improvement direction
in scheme: Improvement Indicator
notation: context-dependent

Higher
type: Concept
definition: Performance improves with a higher measured value
in scheme: Improvement Indicator
notation: higher

Lower
type: Concept
definition: Performance improves with a lower measured value
in scheme: Improvement Indicator
notation: lower

Improvement Indicator
type: ConceptScheme
source: ImprovementIndicator
definition: Improvement Indicator UN/CEFACT code list.
code list scope: domain
term status: proposed