Credential Transparency Description Language Release History

Contents

March 2025 CTDL Release (20250328) - Pending Release
January 2025 CTDL Release (20250131) - Current Release
August 2024 CTDL Release (20240830)
February 2024 CTDL Release (20240223)
October 2023 CTDL Release (20231027)
September 2023 CTDL Release (20230929)
May 2023 CTDL Release (20230526)
March 2023 CTDL Release (20230331)
February 2023 CTDL Release (20230224)
November 2022 CTDL Release (20221130)
September 2022 CTDL Release (20220930)
July 2022 CTDL Release (20220729)
June 2022 CTDL Release (20220624)
March 2022 CTDL Release (20220325)
October 2021 CTDL Release (20211029)
May 2021 CTDL Release (20210528)
March 2021 CTDL Release (20210326)
November 2020 CTDL Release (20201127)
October 2020 CTDL Release (20201030)
August 2020 CTDL Release (20200828)
July 2020 CTDL Release (20200731)
May 2020 CTDL Release (20200529)
April 2020 CTDL Release (20200424)
March 2020 CTDL Release (20200327)
November 2019 CTDL Release (20191129)
October 2019 CTDL Release (20191025)
August 2019 CTDL Release (20190830)
April 2019 CTDL Release (20190426)
March 2019 CTDL Release (20190301)
December 2018 CTDL Release (20181228)
October 2018 CTDL Release (20181026)
July 2018 CTDL Release (20180727)
April 2018 CTDL Release (20180427)
January 2018 CTDL Release (20180129)
October 2017 CTDL Release (20171027)
October 2017 CTDL Interim Definition Update (20171018)
August 2017 CTDL Release (20170825)
June 2017 CTDL Release (20170630)
April 2017 CTDL Release (20170428)
February 2017 CTDL Release (20170224)
Initial Release of CTDL (20161117)

This page displays the release history for the Credential Transparency Description Language schema. Each release contains a set of changes, which are documented below. Each change describes what was changed, why, and links to one or more relevant Github issues.

August 2019 CTDL Release (20190830)

This is the August 2019 CTDL Release.

View Terms | Jump to Mapping Changes

ceterms:audienceLevelType View Term History: JSON Turtle

Change:

schema:domainIncludes: Added ceterms:LearningOpportunityProfile
schema:domainIncludes: Added ceterms:AssessmentProfile

Reason:

en-US Extending the usage of this property to include assessments and learning opportunities.

https://github.com/CredentialEngine/vocabularies/issues/598

ceterms:ncesID View Term History: JSON Turtle

Change:

schema:domainIncludes: Added ceterms:CredentialOrganization
rdfs:label: Added
en-US NCES ID
vs:term_status: Added vs:stable
schema:rangeIncludes: Added xsd:string
rdfs:comment: Added
en-US Identifier comprised of a 12 digit code issued by the National Center for Education Statistics (NCES) for educational institutions where the first 7 digits are the NCES District ID.

Reason:

en-US This property enables capturing NCES ID data.

https://github.com/CredentialEngine/vocabularies/issues/601

ceterms:purposeType View Term History: JSON Turtle

Change:

vann:usageNote: Removed
en-US Best practice for U.S. credentials and for submission to the Credential Engine Registry, is to use concepts from the ceterms:IntendedPurpose vocabulary.
rdfs:label: Removed
en-US Purpose Type
schema:domainIncludes: Removed ceterms:MicroCredential
schema:domainIncludes: Removed ceterms:ResearchDoctorate
vs:term_status: Removed vs:unstable
schema:domainIncludes: Removed ceterms:License
schema:domainIncludes: Removed ceterms:Diploma
schema:domainIncludes: Removed ceterms:ApprenticeshipCertificate
schema:domainIncludes: Removed ceterms:BachelorDegree
schema:domainIncludes: Removed ceterms:MasterDegree
schema:domainIncludes: Removed ceterms:AssociateDegree
schema:domainIncludes: Removed ceterms:GeneralEducationDevelopment
schema:domainIncludes: Removed ceterms:DigitalBadge
schema:domainIncludes: Removed ceterms:Badge
schema:domainIncludes: Removed ceterms:MasterCertificate
schema:domainIncludes: Removed ceterms:JourneymanCertificate
schema:domainIncludes: Removed ceterms:OpenBadge
schema:domainIncludes: Removed ceterms:Credential
schema:domainIncludes: Removed ceterms:Certificate
schema:domainIncludes: Removed ceterms:QualityAssuranceCredential
schema:domainIncludes: Removed ceterms:Certification
rdfs:comment: Removed
en-US Type of intended application of the credential by the holder; select from an existing enumeration of such types.
rdfs:subPropertyOf: Removed ceterms:credentialAlignment
schema:domainIncludes: Removed ceterms:Degree
schema:domainIncludes: Removed ceterms:SecondarySchoolDiploma
schema:domainIncludes: Removed ceterms:ProfessionalDoctorate
schema:domainIncludes: Removed ceterms:DoctoralDegree
schema:rangeIncludes: Removed ceterms:CredentialAlignmentObject

Reason:

en-US This property is directly tied to the Purpose Type vocabulary that was dropped in the previous release. This property was always vs:unstable, and is thus being dropped as well.

https://github.com/CredentialEngine/vocabularies/issues/602

ceterms:sameAs View Term History: JSON Turtle

Change:

dct:description: Added
en-US Entities that may indicate identity include, but are not limited to, descriptions of entities in open databases such as DBpedia and Wikidata or other platforms.
dct:description: Removed
en-US Entities that may indicate identity include, but are not limited to, descriptions of entities in open databases such as DBpedia and Wikidata or social media accounts such as FaceBook and LinkedIn.

Reason:

en-US Helping distinguish between ceterms:sameAs and ceterms:socialMedia

https://github.com/CredentialEngine/vocabularies/issues/606

ceterms:submissionOf View Term History: JSON Turtle

Change:

schema:rangeIncludes: Removed xsd:anyURI
schema:rangeIncludes: Removed rdf:langString

Reason:

en-US Aligning this property with other properties in CTDL that feature data in a URL/description pair. Note that this change alters this property from using a language map to using URIs. See github issue for more details.

https://github.com/CredentialEngine/vocabularies/issues/605

ceterms:submissionOfDescription View Term History: JSON Turtle

Change:

rdfs:label: Added
en-US Submission Of Description
schema:domainIncludes: Added ceterms:ConditionProfile
rdfs:comment: Added
en-US Name, label, or description of an artifact to be submitted such as a transcript, portfolio, or an affidavit.
vs:term_status: Added vs:stable
schema:rangeIncludes: Added rdf:langString

Reason:

en-US New property to pair with ceterms:submissionOf. This property should be used instead of ceterms:submissionOf in order to describe language string data. The ceterms:submissionOf property is now used for URIs/URLs. See github issue for more details.

https://github.com/CredentialEngine/vocabularies/issues/605