Credential Engine Registry Mapping Reference

Updated 7/28/2017

This page is intended to assist in mapping your system's data to CTDL for use with the Credential Engine Registry. The tables on this page outline some of the most useful properties in CTDL for some of the major classes. Select a class below to view properties for that class.

Note that the Importance and Multi columns are relevant to the Credential Registry, and not necessarily to general use of CTDL. In addition, the tables on this page do not show all available properties for a given class - for that, please use the Metadata Viewer.

The information below is considered to be in draft status, and may change at any time.

Classes

Important Properties

Organization

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text Required FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:ctid CTID

Definition: A globally unique Credential Transparency Identifier (CTID) by which the creator/owner/provider recognizes the resource in transactions with the external environment (e.g., in verifiable claims involving a credential).

Usage Note: The CTID is the equivalent of a version identifier for the resource. Different versions of a resource are considered distinct expressions and each must be assigned its own CTID. Each version of a resource can have only one CTID assigned. However, a single version of a resource may have distinct identifier values for both the ctid property and the credentialId property. In such a case both identifiers will be recognized by the resource creator/owner/provider in transactions with the external environment.

Text Required FALSE
ceterms:subjectWebpage Subject Webpage

Definition: The web page where the subject of the resource being described is located.

Usage Note: The web page being referenced is the subject of the resource being described such as a learning opportunity being identified in a profile of that opportunity. The value of subjectWebpage is an authoritative location for information about the subject and should not assumed to be a persistent identifier of the subject.

URL Required FALSE
ceterms:agentType Agent Type

Definition: The type of the described agent.

Usage Note: Best practice for developing credential descriptions for the Credential Engine Registry is to use the CTDL OrganizationType vocabulary.

Vocabulary: Organization Type Required TRUE
ceterms:socialMedia Social Media

Definition: A social media resource for the resource being described.

Guidance: Values should be the URLs of social media pages for this organization.

URL TRUE
ceterms:keyword Keyword

Definition: Keywords or key phrases describing aspects of a resource considered useful for its discovery.

Usage Note: Use the keyword property to enter free text keywords. A subject concept in a controlled vocabulary should use the subject property.

Text TRUE
ceterms:image Image

Definition: The image or icon that represents the resource.

Guidance: Ensure that the image at this URL can be accessed via third-party domains (i.e., "hotlinking" is enabled).

URL TRUE
ceterms:serviceType Service Type

Definition: The type of service offered by the agent being described.

Comment: This is a general statement rather than a relationship to a specific service or a specific credential. For example: "approves", "assesses", "regulates"

Usage Note: Recommended best practice for credentials in the Credential Engine Registry is to use concepts from the CTDL AgentServiceType vocabulary.

Vocabulary: Agent Service Type TRUE
ceterms:agentSectorType Agent Sector Type

Definition: The types of sociological, economic, or political subdivision of society served by an agent.

Usage Note: Recommended best practice for credentials in the Credential Engine Registry is to use concepts from the CTDL AgentSector vocabulary.

Vocabulary: Agent Sector TRUE
ceterms:owns Owns

Definition: The described agent has legal title to the referenced resource.

Usage Note: Generally, the value of the property should be one of the subclasses of ceterms:Credential.

Identifier for Credential TRUE
ceterms:offers Offers

Definition: The agent being described offers or confers the resource being referenced.

Usage Note: Generally, the value of the property should be one of the subclasses of ceterms:Credential.

Identifier for Credential TRUE
ceterms:department Department

Definition: The organization being referenced is a department of the organization being described.

Identifier for Credential Organization TRUE
ceterms:parentOrganization Parent Organization

Definition: The larger, parent organization of the organization being described.

Identifier for Credential Organization TRUE
ceterms:address Address

Definition: Physical address of the resource.

Embedded Postal Address TRUE

Credential

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text Required FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:ctid CTID

Definition: A globally unique Credential Transparency Identifier (CTID) by which the creator/owner/provider recognizes the resource in transactions with the external environment (e.g., in verifiable claims involving a credential).

Usage Note: The CTID is the equivalent of a version identifier for the resource. Different versions of a resource are considered distinct expressions and each must be assigned its own CTID. Each version of a resource can have only one CTID assigned. However, a single version of a resource may have distinct identifier values for both the ctid property and the credentialId property. In such a case both identifiers will be recognized by the resource creator/owner/provider in transactions with the external environment.

Text Required FALSE
ceterms:subjectWebpage Subject Webpage

Definition: The web page where the subject of the resource being described is located.

Usage Note: The web page being referenced is the subject of the resource being described such as a learning opportunity being identified in a profile of that opportunity. The value of subjectWebpage is an authoritative location for information about the subject and should not assumed to be a persistent identifier of the subject.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL Required FALSE
ceterms:ownedBy Owned By

Definition: An agent that has an enforceable claim or title to a resource.

Identifier for Credential Organization Required FALSE
ceterms:dateEffective Date Effective

Definition: The effective date of the described resource content.

Date-Formatted Text FALSE
ceterms:keyword Keyword

Definition: Keywords or key phrases describing aspects of a resource considered useful for its discovery.

Usage Note: Use the keyword property to enter free text keywords. A subject concept in a controlled vocabulary should use the subject property.

Text FALSE
ceterms:audienceLevelType Audience Level Type

Definition: A point in a progression through an educational or training context, for which the described resource is intended.

Usage Note: Best practice is to use terms from the CTDL Audience Level vocabulary.

Vocabulary: Audience Level TRUE
ceterms:industryType Industry Type

Definition: The class identifier for the industry context from an established framework.

Usage Note: Best practice in identifying industries for U.S. credentials is to provide the NAICS code using the ceterms:naics property. Other credentials may use the ceterms:industrytype property and any framework of the class ceterms:IndustryClassification such as the Standard Industrial Classification (SIC) or the International Standard Industrial Classification of all Economic Activities (ISIC).

Vocabulary: Industry Classification TRUE
ceterms:occupationType Occupation Type

Definition: The relevant occupation.

Usage Note: For U.S. credentials, best practice is to identify an occupation using a framework such as the O*Net. Other credentials may use any framework of the class CTDL OccupationClassification.

Vocabulary: Occupation Classification TRUE
ceterms:estimatedCost Estimated Cost

Definition: The estimated cost of the described resource.

Embedded Cost Profile TRUE
ceterms:estimatedDuration Estimated Duration

Definition: The estimated time it will take to complete the described activity.

Embedded Duration Profile TRUE
ceterms:requires Requires

Definition: The resource being described requires the resource being referenced.

Embedded Condition Profile TRUE
ceterms:recommends Recommends

Definition: The resource being described recommends the resource being referenced.

Embedded Condition Profile TRUE
ceterms:hasPart Has Part

Definition: Indicates a resource that is (in some sense) a part of the resource being described.

Usage Note: Covers partitive notions such as "embedded".

Identifier for Credential Optional TRUE
ceterms:purposeType Purpose Type

Definition: The intended type of application of the credential by the holder.

Comment: Types include, but are not limited to, general education, and job/career preparation.

Usage Note: Best practice for U.S. credentials and for submission to the Credential Engine Registry, is to use concepts from the ceterms:IntendedPurpose vocabulary with the ceterms:AlignmentObject.

Vocabulary: Intended Purpose Optional TRUE
ceterms:renewedBy Renewed By

Definition: The agent being referenced handles the renewal of awards of the credential being described.

Identifier for Credential Organization Optional TRUE
ceterms:revokedBy Revoked By

Definition: The referenced agent handles the revocation of an awarded credential from the credential holder due to violations.

Identifier for Credential Organization Optional TRUE

Assessment

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text Required FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:ctid CTID

Definition: A globally unique Credential Transparency Identifier (CTID) by which the creator/owner/provider recognizes the resource in transactions with the external environment (e.g., in verifiable claims involving a credential).

Usage Note: The CTID is the equivalent of a version identifier for the resource. Different versions of a resource are considered distinct expressions and each must be assigned its own CTID. Each version of a resource can have only one CTID assigned. However, a single version of a resource may have distinct identifier values for both the ctid property and the credentialId property. In such a case both identifiers will be recognized by the resource creator/owner/provider in transactions with the external environment.

Text Required FALSE
ceterms:assessmentMethodType Assessment Method Type

Definition: The method used to conduct the assessment being referenced

Usage Note: Best practice for developing credential descriptions for the Credential Engine Registry is to use the CTDL Assessment Method vocabulary.

Vocabulary: Assessment Method Required TRUE
ceterms:codedNotation Coded Notation

Definition: A short set of alpha-numeric symbols that uniquely identifies a resource and supports its discovery.

Usage Note: Examples include the alpha-numeric code "CCSS.MATH.CONTENT.HSA.CED.A.2" identifying a node in the U.S. Common Core State Standards on creating equations in algebra, or, the code "8021" in the U.S. Standard Industrial Classification (SIC) for identifying the occupational context for "Offices and Clinics of Dentists".

Text FALSE
ceterms:subjectWebpage Subject Webpage

Definition: The web page where the subject of the resource being described is located.

Usage Note: The web page being referenced is the subject of the resource being described such as a learning opportunity being identified in a profile of that opportunity. The value of subjectWebpage is an authoritative location for information about the subject and should not assumed to be a persistent identifier of the subject.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL FALSE
ceterms:keyword Keyword

Definition: Keywords or key phrases describing aspects of a resource considered useful for its discovery.

Usage Note: Use the keyword property to enter free text keywords. A subject concept in a controlled vocabulary should use the subject property.

Text TRUE
ceterms:subject Subject

Definition: Words or brief phrases describing topicality of a resource.

Usage Note: Use the subject property to reference a concept in a controlled vocabulary. Free text subjects should use the keyword property.

Embedded Credential Alignment Object TRUE
ceterms:deliveryType Delivery Type

Definition: The means by which the resource being described is delivered to people or interacted with by people.

Usage Note: Best practice is to use concepts from a controlled vocabulary such as the CTDL Delivery Type vocabulary.

Vocabulary: Delivery Type TRUE
ceterms:targetCompetency Target Competency

Definition: An alignment to a competency assertion in an established framework.

Embedded Credential Alignment Object TRUE
ceterms:ownedBy Owned By

Definition: An agent that has an enforceable claim or title to a resource.

Identifier for Credential Organization FALSE
ceterms:offeredBy Offered By

Definition: Access to the described resource is offered by the referenced agent.

Identifier for Credential Organization TRUE
ceterms:assessmentExample Assessment Example

Definition: A resource that provides an example assessment or assessment item.

URL FALSE
ceterms:assessmentUseType Assessment Use Type

Definition: The intended use of the assessment being referenced.

Usage Note: Best practice for developing credential descriptions for the Credential Engine Registry is to use the CTDL Assessment Use vocabulary.

Vocabulary: Assessment Use TRUE
ceterms:estimatedCost Estimated Cost

Definition: The estimated cost of the described resource.

Embedded Cost Profile TRUE
ceterms:estimatedDuration Estimated Duration

Definition: The estimated time it will take to complete the described activity.

Embedded Duration Profile TRUE
ceterms:requires Requires

Definition: The resource being described requires the resource being referenced.

Embedded Condition Profile Optional TRUE
ceterms:recommends Recommends

Definition: The resource being described recommends the resource being referenced.

Embedded Condition Profile Optional TRUE

Learning Opportunity

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text Required FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:ctid CTID

Definition: A globally unique Credential Transparency Identifier (CTID) by which the creator/owner/provider recognizes the resource in transactions with the external environment (e.g., in verifiable claims involving a credential).

Usage Note: The CTID is the equivalent of a version identifier for the resource. Different versions of a resource are considered distinct expressions and each must be assigned its own CTID. Each version of a resource can have only one CTID assigned. However, a single version of a resource may have distinct identifier values for both the ctid property and the credentialId property. In such a case both identifiers will be recognized by the resource creator/owner/provider in transactions with the external environment.

Text Required FALSE
ceterms:learningMethodType Learning Method Type

Definition: The methods used to conduct the learning opportunity being referenced.

Usage Note: Best practice is to use concepts from a controlled vocabulary such as the ceterms:LearningMethod.

Vocabulary: Learning Method Required TRUE
ceterms:codedNotation Coded Notation

Definition: A short set of alpha-numeric symbols that uniquely identifies a resource and supports its discovery.

Usage Note: Examples include the alpha-numeric code "CCSS.MATH.CONTENT.HSA.CED.A.2" identifying a node in the U.S. Common Core State Standards on creating equations in algebra, or, the code "8021" in the U.S. Standard Industrial Classification (SIC) for identifying the occupational context for "Offices and Clinics of Dentists".

Text FALSE
ceterms:subjectWebpage Subject Webpage

Definition: The web page where the subject of the resource being described is located.

Usage Note: The web page being referenced is the subject of the resource being described such as a learning opportunity being identified in a profile of that opportunity. The value of subjectWebpage is an authoritative location for information about the subject and should not assumed to be a persistent identifier of the subject.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL FALSE
ceterms:keyword Keyword

Definition: Keywords or key phrases describing aspects of a resource considered useful for its discovery.

Usage Note: Use the keyword property to enter free text keywords. A subject concept in a controlled vocabulary should use the subject property.

Text FALSE
ceterms:subject Subject

Definition: Words or brief phrases describing topicality of a resource.

Usage Note: Use the subject property to reference a concept in a controlled vocabulary. Free text subjects should use the keyword property.

Embedded Credential Alignment Object TRUE
ceterms:audienceLevelType Audience Level Type

Definition: A point in a progression through an educational or training context, for which the described resource is intended.

Usage Note: Best practice is to use terms from the CTDL Audience Level vocabulary.

Vocabulary: Audience Level TRUE
ceterms:instructionalProgramType Instructional Program Type

Definition: The class identifier for instructional program context.

Usage Note: For U.S. credentials, best practice is to use a framework such as the CIP (Classification of Instructional Programs). Other credentials may use any framework of the class CTDL InstructionalProgramClassification.

Vocabulary: Instructional Program Classification TRUE
ceterms:deliveryType Delivery Type

Definition: The means by which the resource being described is delivered to people or interacted with by people.

Usage Note: Best practice is to use concepts from a controlled vocabulary such as the CTDL Delivery Type vocabulary.

Vocabulary: Delivery Type TRUE
ceterms:targetCompetency Target Competency

Definition: An alignment to a competency assertion in an established framework.

Embedded Credential Alignment Object TRUE
ceterms:ownedBy Owned By

Definition: An agent that has an enforceable claim or title to a resource.

Identifier for Credential Organization FALSE
ceterms:offeredBy Offered By

Definition: Access to the described resource is offered by the referenced agent.

Identifier for Credential Organization TRUE
ceterms:estimatedCost Estimated Cost

Definition: The estimated cost of the described resource.

Embedded Cost Profile TRUE
ceterms:estimatedDuration Estimated Duration

Definition: The estimated time it will take to complete the described activity.

Embedded Duration Profile TRUE
ceterms:requires Requires

Definition: The resource being described requires the resource being referenced.

Embedded Condition Profile Optional TRUE
ceterms:recommends Recommends

Definition: The resource being described recommends the resource being referenced.

Embedded Condition Profile Optional TRUE

Condition Manifest

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text Required FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:ctid CTID

Definition: A globally unique Credential Transparency Identifier (CTID) by which the creator/owner/provider recognizes the resource in transactions with the external environment (e.g., in verifiable claims involving a credential).

Usage Note: The CTID is the equivalent of a version identifier for the resource. Different versions of a resource are considered distinct expressions and each must be assigned its own CTID. Each version of a resource can have only one CTID assigned. However, a single version of a resource may have distinct identifier values for both the ctid property and the credentialId property. In such a case both identifiers will be recognized by the resource creator/owner/provider in transactions with the external environment.

Text Required FALSE
ceterms:subjectWebpage Subject Webpage

Definition: The web page where the subject of the resource being described is located.

Usage Note: The web page being referenced is the subject of the resource being described such as a learning opportunity being identified in a profile of that opportunity. The value of subjectWebpage is an authoritative location for information about the subject and should not assumed to be a persistent identifier of the subject.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL FALSE
ceterms:requires Requires

Definition: The resource being described requires the resource being referenced.

Embedded Condition Profile TRUE
ceterms:recommends Recommends

Definition: The resource being described recommends the resource being referenced.

Embedded Condition Profile TRUE
ceterms:entryCondition Entry Condition

Definition: The prerequisites for entry into the resource being described.

Comment: Such requirements might include transcripts, previous experience, lower-level learning opportunities, etc.

Embedded Condition Profile Optional TRUE
ceterms:corequisite Corequisite

Definition: The resource being referenced must be pursued concurrently with the resource being described.

Comment: Includes dual (double) degrees that cannot be earned independently of each other.

Embedded Condition Profile Optional TRUE

Cost Manifest

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text Required FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:ctid CTID

Definition: A globally unique Credential Transparency Identifier (CTID) by which the creator/owner/provider recognizes the resource in transactions with the external environment (e.g., in verifiable claims involving a credential).

Usage Note: The CTID is the equivalent of a version identifier for the resource. Different versions of a resource are considered distinct expressions and each must be assigned its own CTID. Each version of a resource can have only one CTID assigned. However, a single version of a resource may have distinct identifier values for both the ctid property and the credentialId property. In such a case both identifiers will be recognized by the resource creator/owner/provider in transactions with the external environment.

Text Required FALSE
ceterms:estimatedCost Estimated Cost

Definition: The estimated cost of the described resource.

Embedded Cost Profile Required TRUE
ceterms:costDetails Cost Details

Definition: A resource containing human-readable, in-depth information about the cost(s) being described.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL FALSE
ceterms:startDate Start Date

Definition: The start date of something.

Date-Formatted Text Optional FALSE
ceterms:endDate End Date

Definition: The end date of something.

Date-Formatted Text Optional FALSE

Condition Profile

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:subjectWebpage Subject Webpage

Definition: The web page where the subject of the resource being described is located.

Usage Note: The web page being referenced is the subject of the resource being described such as a learning opportunity being identified in a profile of that opportunity. The value of subjectWebpage is an authoritative location for information about the subject and should not assumed to be a persistent identifier of the subject.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL FALSE
ceterms:condition Condition

Definition: A single condition or aspect of experience that refines the conditions under which the resource being described is applicable.

Usage Note: Typically, this is one item in a list of items, such as an unordered or bulleted list.

Text TRUE
ceterms:targetCredential Target Credential

Definition: A credential that is a focus or target of the resource being described.

Identifier for Credential TRUE
ceterms:targetCompetency Target Competency

Definition: An alignment to a competency assertion in an established framework.

Embedded Credential Alignment Object TRUE
ceterms:targetAssessment Target Assessment

Definition: A resource that provides direct, indirect, formative or summative evaluation or estimation of the nature, ability, or quality for the resource being described.

Identifier for Assessment TRUE
ceterms:targetLearningOpportunity Target Learning Opportunity

Definition: A learning opportunity that is the focus of the resource being described.

Identifier for Learning Opportunity TRUE
ceterms:audienceType Audience Type

Definition: The applicable audience.

Comment: The audience for whom the particular condition or cost is applicable.

Usage Note: Best practice for developing credential descriptions for the Credential Engine Registry is to use the CTDL Audience vocabulary.

Vocabulary: Audience TRUE
ceterms:audienceLevelType Audience Level Type

Definition: A point in a progression through an educational or training context, for which the described resource is intended.

Usage Note: Best practice is to use terms from the CTDL Audience Level vocabulary.

Vocabulary: Audience Level TRUE
ceterms:estimatedCost Estimated Cost

Definition: The estimated cost of the described resource.

Embedded Cost Profile Optional TRUE
ceterms:jurisdiction Jurisdiction

Definition: The geo-political region in which the described resource is applicable.

Embedded Jurisdiction Profile Optional TRUE

Cost Profile

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:name Name

Definition: The name of the resource being described.

Text FALSE
ceterms:description Description

Definition: A short description of the resource being described.

Text Required FALSE
ceterms:currency Currency

Definition: The currency in which the monetary amount is expressed (in 3-letter ISO 4217 format).

Usage Note: The ISO 4217 code used to identify the currency for stated costs. E.g., "USD" for U.S. dollars.

Text Required FALSE
ceterms:price Price

Definition: The offer price of a product.

Numeric Integer Required FALSE
ceterms:costDetails Cost Details

Definition: A resource containing human-readable, in-depth information about the cost(s) being described.

Guidance: This is preferably a webpage; however, if the best or only description is in a downloadable file (such as a PDF), provide the direct link to that file until such a webpage is available.

URL FALSE
ceterms:paymentPattern Payment Pattern

Definition: The pattern with which payments are due.

Comment: For example: "Per semester" or "Every 3 months" or "One-time payment".

Text FALSE
ceterms:audienceType Audience Type

Definition: The applicable audience.

Comment: The audience for whom the particular condition or cost is applicable.

Usage Note: Best practice for developing credential descriptions for the Credential Engine Registry is to use the CTDL Audience vocabulary.

Vocabulary: Audience TRUE
ceterms:directCostType Cost Type

Definition: One or more types of direct costs associated with attaining the credential.

Usage Note: Best practice for developing credential descriptions for the Credential Engine Registry is to use the CTDL Cost vocabulary.

Vocabulary: Cost Type TRUE
ceterms:residencyType Residency Type

Definition: The type of a person's legal residency status.

Usage Note: Best practice for U.S. credentials and for submission to the Credential Engine Registry, is to use concepts from the CTDL Residency vocabulary.

Vocabulary: Residency TRUE
ceterms:jurisdiction Jurisdiction

Definition: The geo-political region in which the described resource is applicable.

Embedded Jurisdiction Profile Optional TRUE

Duration Profile

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CTDL PropertyLabelInformationValue TypeImportanceMulti
ceterms:description Description

Definition: A short description of the resource being described.

Text FALSE
ceterms:exactDuration Exact Duration

Definition: The exact amount of time it will take to complete the described activity.

Duration-Formatted Text FALSE
ceterms:minimumDuration Minimum Duration

Definition: The minimum amount of time it will take to complete the described activity.

Duration-Formatted Text FALSE
ceterms:maximumDuration Maximum Duration

Definition: The maximum amount of time it will take to complete the described resource.

Duration-Formatted Text FALSE