Foundational Quality Metrics (FQM)
type: Ontology
description: The Foundational Quality Metrics(FQM) vocabulary describes a set of objective metrics as the fundamental requirements that RDF resources must meet to maximize the potential of linked resources.
creator: Shuxin Zhang
modified: 2022-06-03
language: en

Non-resolvable URIs
type: Metric
definition: 1) Check if an RDF resource is resolvable (Boolean), or 2) check if URIs in that RDF resource are resolvable, and measure the proportion of non-resolvable URIs to all unique URIs.
in dimension: availability
relatd: DereferenceabilityMetric

Non-parsable URIs
type: Metric
definition: 1) Check if an RDF resource is parsable (Boolean), or 2) check if URIs in that RDF resource which already indicate RDF content-type are parsable, and measure the proportion of non-parsable URIs to all unique URIs in that RDF resource;
in dimension: availability
relatd: MisreportedContentTypesMetric

Undefined URIs
type: Metric
definition: Measure the proportion of undefined URIs to all unique URIs in an RDF resource.
in dimension: consistency
in dimension: interpretability
relatd: UndefinedClassesAndPropertiesMetric

Misplaced classes or properties metric
type: Metric
definition: 1)Measure the proportion of classes which are incorrectly used as a predicate to all unique classes; or 2) measure the proportion of properties which are incorrectly used as a class to all unique properties.
in dimension: consistency
relatd: MisplacedClassesOrPropertiesMetric

Misuse Owl datatype or object properties metric
type: Metric
definition: Measure the proportion of misused ‘owl:datatypeProperty‘ (or ‘owl:objectProperty‘ ) properties to all properties.
in dimension: consistency
relatd: MisusedOwlDatatypeOrObjectPropertiesMetric

Usage of Deprecated Classes or Deprecated Properties
type: Metric
definition: Measure the proportion of deprecated classes or properties to all unique classes or properties.
in dimension: consistency
relatd: UsageOfDeprecatedClassesOrProperties