Quantitative Data

Release 20201127 | View Pending Changes

About This Schema

The CTDL Quantitative Data schema (QData for short) is intended to describe aggregate/statistical data related to credentials and other such information.

The QData model and accompanying properties and classes currently provide access to aggregate earnings, employment and holder data stemming largely from second party datasets (e.g., U.S. Department of Labor). Similar access is under development for including aggregate credential holder data.

Current records in the Credential Engine Registry (CER) embody authoritative data provided either by: (1) the credential organization that owns or offers the credential as well as any associated learning opportunities or assessments; or, (2) a second party under the authority of such a credential organization. The earnings, employment and holder information of concern here is largely sourced through second party data aggregators including public sector agencies at both state and federal levels and private sector organizations supporting specific services and making that data more-or-less publicly available through various means.

11/27/2020 Release

This is the November 2020 QData Release

This page displays the Quantitative Data schema in an RDF-centric format. Below you will find every class, property, concept scheme, and concept for this schema, each with a thorough description and connections to other terms. For an object-oriented view of this schema, use the Mapping Guidance page.


In the tables below, the following prefixes refer to the following schema sources:

General References
PrefixVocabulary NameVocabulary Title
asnhttp://purl.org/asn/schema/core/Achievement Standards Network Terms
ceasnhttps://purl.org/ctdlasn/terms/CTDL-ASN Schema
cetermshttps://purl.org/ctdl/terms/Credential Transparency Description Language Terms
dchttp://purl.org/dc/elements/1.1/Dublin Core Metadata Element Set, Version 1.1
dcthttp://purl.org/dc/terms/DCMI Metadata Terms
metahttp://credreg.net/meta/terms/Credential Engine Registry Meta Terms
qdatahttps://credreg.net/qdata/terms/Quantitative Data Schema
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#Resource Description Framework
rdfshttp://www.w3.org/2000/01/rdf-schema#RDF Schema 1.1
skoshttp://www.w3.org/2004/02/skos/core#Simple Knowledge Organization System
vshttps://www.w3.org/2003/06/sw-vocab-status/ns#Term-centric Semantic Web Vocabulary Annotations
xsdhttp://www.w3.org/2001/XMLSchema#XML Schema Definition
Controlled Vocabulary Concepts References (SKOS)
PrefixVocabulary NameVocabulary Title
adminRecordhttps://credreg.net/qdata/vocabs/adminRecord/Administrative Record Type Concept Scheme
collectionMethodhttp://credreg.net/qdata/vocabs/collectionMethod/Collection Method Concept Scheme
dataWithholdinghttps://credreg.net/qdata/vocabs/dataWithholding/Data Withholding Category Concept Scheme
incomeDeterminationhttp://credreg.net/qdata/vocabs/incomeDetermination/Income Determination Method Concept Scheme
sourceCoveragehttp://credreg.net/qdata/vocabs/sourceCoverage/Source Coverage Concept Scheme
subjectCategoryhttp://credreg.net/qdata/vocabs/subjectCategory/Subject Category Concept Scheme



Concept Schemes


Info and Statistics

Below is key information for the 11/27/2020 Release of Quantitative Data:

Quantitative Data

Schema ID: qdata
Schema Prefix: qdata
Release ID: 20201127
Release Date: 11/27/2020
Release Status: vs:stable


Use the options below to determine the totals to include for the selected schemas. For each schema, you can also opt to include counts for terms that that schema borrows:

  • From other Credential Engine schemas (e.g., CTDL-ASN borrows ceterms:industryType from CTDL for its ceasn:CompetencyFramework class)
  • From non-Credential Engine schemas (e.g., CTDL borrows schema:QuantitativeData from schema.org for its ceterms:financialAssistanceValue property)

Terms will not be counted twice regardless of which combination of options you select.

Term TypeStableUnstablePendingDeprecatedTotal by Type
Concept Scheme
Total by Status