{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://catalog.midasnetwork.us/schema/midas-catalog-jsonld.schema.json", "version": "1.1.0", "title": "MIDAS Catalog JSON-LD Metadata Schema", "description": "JSON Schema for MIDAS Catalog metadata records. Validates the JSON-LD output produced by the MIDAS Catalog system. Auto-generated from Java class hierarchy. Null values are never present — properties are omitted when not applicable.", "type": "object", "required": [ "@type", "@context" ], "properties": { "@context": { "description": "JSON-LD context containing vocabulary namespace declarations, property mappings, and embedded documentation. All nested contexts are flattened to this root-level object.", "type": "object" } }, "$defs": { "ConformsToStandard": { "title": "ConformsTo Standard", "description": "A metadata standard or specification that this resource's metadata conforms to. Typed as dcterms:Standard.", "type": "object", "properties": { "@type": { "type": "string", "const": "http://purl.org/dc/terms/Standard" }, "id": { "description": "IRI of the standard.", "type": "string", "format": "uri" }, "type": { "description": "Redundant type field using prefixed form. Typically 'dct:Standard'.", "type": "string" }, "name": { "description": "Human-readable name of the standard.", "type": "string" }, "description": { "description": "Brief description of the standard.", "type": "string" }, "url": { "description": "URL of the standard's documentation.", "type": "string", "format": "uri" }, "subjectAreas": { "description": "Subject domains covered by this standard.", "type": "array", "items": { "type": "string" } }, "standardType": { "description": "Classification: 'generic', 'metadata schema', 'domain-specific', or 'custom'.", "type": "string", "enum": [ "generic", "metadata schema", "domain-specific", "custom" ] } }, "additionalProperties": true }, "Location": { "title": "Location", "description": "A postal address for an organization. Mapped to schema:PostalAddress and vcard:Address.", "type": "object", "properties": { "@type": { "const": [ "https://schema.org/PostalAddress", "vcard:Address" ] }, "types": { "type": "array", "items": { "type": "string" } }, "address": { "description": "Street address line of a postal address.", "type": "string" }, "city": { "description": "City or locality portion of a postal address.", "type": "string" }, "state": { "description": "State, province, or region portion of a postal address.", "type": "string" }, "country": { "description": "Country name or code for a postal address.", "type": "string" }, "zipcode": { "description": "Postal code or ZIP code.", "type": "string" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" } }, "additionalProperties": true }, "Organization": { "title": "Organization", "description": "An organization (schema:Organization). Used for publisher, funder, provider, and creator roles.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Organization" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "identifiers": { "description": "Multiple identifiers for a person or entity (e.g., ORCID, researcher IDs). Used when an entity has more than one identifier.", "type": "array", "items": { "type": "string" } }, "email": { "description": "Contact email address for the organization.", "type": "string" }, "location": { "description": "Physical location of an organization. Contains a PostalAddress (Location) object.", "$ref": "#/$defs/Location" }, "funder": { "description": "Organization that funded the creation or maintenance of this resource.", "$ref": "#/$defs/Organization" } }, "additionalProperties": true }, "Person": { "title": "Person", "description": "A person (schema:Person). Used for creators whose curated is_person flag is set, with optional ORCID identifiers.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Person" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "identifiers": { "description": "Multiple identifiers for a person or entity (e.g., ORCID, researcher IDs). Used when an entity has more than one identifier.", "type": "array", "items": { "type": "string" } } }, "additionalProperties": true }, "Place": { "title": "Place", "description": "A geographic location (schema:Place) with optional GeoNames feature classification.", "type": "object", "properties": { "@type": { "const": [ "https://schema.org/Place", "geonames:Feature" ] }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "types": { "type": "array", "items": { "type": "string" } }, "featureCode": { "description": "GeoNames feature code indicating the type of geographic feature (e.g., 'PCLI' for independent political entity, 'ADM1' for first-order administrative division).", "type": "string" }, "featureClass": { "description": "GeoNames feature class indicating the broad category of geographic feature (e.g., 'A' for administrative division, 'P' for populated place).", "type": "string" } }, "additionalProperties": true }, "DefinedTerm": { "title": "DefinedTerm", "description": "A term from a controlled vocabulary (schema:DefinedTerm, equivalent to skos:Concept).", "type": "object", "properties": { "@type": { "const": [ "https://schema.org/DefinedTerm", "skos:Concept" ] }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "types": { "type": "array", "items": { "type": "string" } }, "displayName": { "description": "Human-readable display name for a term or concept. Used when the formal name differs from what should be shown to users.", "type": "string" }, "exactMatch": { "description": "Cross-walk to an equivalent concept in another controlled vocabulary or scheme (e.g., LRMI, Wikidata, an OBO ontology). Used on educational formats, audiences, and file formats.", "type": "string" }, "broadMatch": { "description": "Cross-walk to a broader concept in another controlled vocabulary or scheme. Used on educational use terms.", "type": "string" }, "inDefinedTermSet": { "description": "The controlled vocabulary or terminology system that defines this term (e.g., 'MESH', 'SNOMED CT', 'ICD-10').", "type": "string" } }, "additionalProperties": true }, "PropertyValue": { "title": "PropertyValue", "description": "A property-value pair (schema:PropertyValue). Used for variableMeasured entries.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/PropertyValue" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "propertyID": { "description": "A commonly used identifier for the characteristic represented by the property, e.g. a manufacturer or a standard code for a property. propertyID can be (1) a prefixed string, mainly meant to be used with standards for product properties; (2) a site-specific, non-prefixed string (e.g. the primary key of the property or the vendor-specific ID of the property), or (3) a URL indicating the type of the property, either pointing to an external vocabulary, or a Web resource that describes the property (e.g. a glossary entry). Standards bodies should promote a standard prefix for the identifiers of properties from their standards.", "type": "string" }, "value": { "description": "The value of a QuantitativeValue (including Observation) or property value node.", "type": "string" }, "valueReference": { "description": "A secondary value that provides additional information on the original value, e.g. a reference temperature or a type of measurement.", "$ref": "#/$defs/DefinedTerm" } }, "additionalProperties": true }, "License": { "title": "License", "description": "A license (schema:CreativeWork). Used for catalogLicense, sourceLicense, and distribution licenses.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/CreativeWork" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" } }, "additionalProperties": true }, "Language": { "title": "Language", "description": "A human language (schema:Language) with ISO 639-2 code.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Language" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" } }, "additionalProperties": true }, "ComputerLanguage": { "title": "ComputerLanguage", "description": "A programming language (schema:ComputerLanguage).", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/ComputerLanguage" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" } }, "additionalProperties": true }, "OperatingSystem": { "title": "OperatingSystem", "description": "An operating system (schema:OperatingSystem).", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/OperatingSystem" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" } }, "additionalProperties": true }, "DataDownload": { "title": "DataDownload", "description": "A distribution of a dataset modeled as an access point (dcat:Distribution): the landing page is its dcat:accessURL; no direct download link.", "type": "object", "properties": { "@type": { "const": [ "dcat:Distribution" ] }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "types": { "type": "array", "items": { "type": "string" } }, "accessUrl": { "description": "Access point of a distribution: the landing page where the data can be browsed and obtained (DCAT allows a landing page as accessURL).", "type": "string", "format": "uri" }, "encodingFormat": { "description": "File format or media type of a specific distribution (e.g., 'text/csv', 'application/json', 'application/xml'). Uses IANA media types.", "type": "string" }, "mediaType": { "description": "IANA media type of this distribution as a resolvable IRI (e.g. https://www.iana.org/assignments/media-types/text/csv). DCAT-preferred for registered media types.", "type": "string" }, "license": { "description": "License governing use of the resource (e.g., MIT, Apache, CC-BY). Can appear in multiple contexts (catalog, source data, distributions).", "$ref": "#/$defs/License" } }, "additionalProperties": true }, "CourseInstance": { "title": "CourseInstance", "description": "An offering of a course through a specific mode of study (schema:CourseInstance); carries the courseMode delivery values.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/CourseInstance" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "courseMode": { "description": "The medium or means of delivery of the course (e.g., 'online', 'in-person', 'MOOC'). Array of text values, carried on the CourseInstance.", "type": "array", "items": { "type": "string" } }, "instructor": { "description": "A person assigned to instruct or provide instructional assistance for the course. Person object(s), carried on the CourseInstance. schema.org's declared range is Person; MIDAS cannot guarantee the party is a person, so an organization listed as instructor still emits as Person.", "type": "array", "items": { "type": "object", "additionalProperties": true } } }, "additionalProperties": true }, "ProvAgent": { "title": "PROV-O Agent", "description": "A provenance agent (prov:Agent) — a person or organization.", "type": "object", "properties": { "@type": { "type": "string", "const": "http://www.w3.org/ns/prov#Agent" }, "@id": { "type": "string" }, "name": { "type": "string" }, "url": { "type": "string", "format": "uri" } }, "additionalProperties": true }, "ProvEntity": { "title": "PROV-O Entity", "description": "A provenance entity (prov:Entity) — a data source or generated resource.", "type": "object", "properties": { "@type": { "type": "string", "const": "http://www.w3.org/ns/prov#Entity" }, "@id": { "type": "string" }, "name": { "type": "string" }, "identifier": { "type": "string" }, "identifierType": { "type": "string" }, "license": { "type": "object", "properties": { "name": { "type": "string" }, "iri": { "type": "string", "format": "uri" } }, "additionalProperties": true }, "rights": { "type": "object", "properties": { "name": { "type": "string" } }, "additionalProperties": true }, "prov:wasAttributedTo": { "$ref": "#/$defs/ProvAgent" }, "prov:wasDerivedFrom": { "$ref": "#/$defs/ProvEntity" }, "prov:wasGeneratedBy": { "type": "object" } }, "additionalProperties": true }, "ProvActivity": { "title": "PROV-O Activity", "description": "A provenance activity (prov:Activity) — the creation or processing event.", "type": "object", "properties": { "@type": { "type": "string", "const": "http://www.w3.org/ns/prov#Activity" }, "@id": { "description": "Activity identifier, typically '{collectionId}#creation-activity'.", "type": "string" }, "prov:used": { "type": "array", "items": { "$ref": "#/$defs/ProvEntity" } }, "prov:wasAssociatedWith": { "type": "array", "items": { "$ref": "#/$defs/ProvAgent" } }, "prov:generated": { "$ref": "#/$defs/ProvEntity" } }, "additionalProperties": true }, "AboutItem": { "title": "About Item", "description": "An item in the 'about' array — either a DefinedTerm (topic/biological scale/type) or a Place.", "oneOf": [ { "$ref": "#/$defs/DefinedTerm" }, { "$ref": "#/$defs/Place" } ] }, "DataCatalogRef": { "title": "DataCatalog Reference", "description": "Reference to the parent data catalog. For MIDAS records this is the MIDAS Catalog itself.", "type": "object", "properties": { "@type": { "const": [ "https://schema.org/DataCatalog", "dcat:Catalog" ] }, "name": { "type": "string" }, "url": { "type": "string", "format": "uri" } }, "additionalProperties": true }, "RelatedDataItem": { "title": "Related Data", "description": "A related resource (schema:CreativeWork) linked via dcterms:relation.", "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/CreativeWork" }, "id": { "type": "string", "format": "uri" }, "name": { "type": "string" }, "description": { "type": "string" }, "url": { "type": "string", "format": "uri" }, "identifier": { "type": "string" }, "sourceLicense": { "$ref": "#/$defs/License" }, "rights": { "type": "string" } }, "additionalProperties": true }, "CreativeWorkProperties": { "title": "Common CreativeWork Properties", "description": "Properties shared by all MIDAS resource types. Corresponds to the Java CreativeWork class extending Thing.", "type": "object", "properties": { "@context": { "type": "object" }, "id": { "description": "Unique identifier (IRI/URL) for this resource. In JSON-LD, @id represents the globally unique identifier.", "type": "string", "format": "uri" }, "dcIdentifier": { "description": "Primary persistent identifier using Dublin Core terms (e.g., DOI, Handle, ARK, or persistent URL).", "type": "string" }, "identifier": { "description": "Primary persistent identifier for this resource (e.g., DOI, Handle, ARK, or persistent URL). Can be a simple string or PropertyValue object.", "type": "string" }, "name": { "description": "Title or name of the digital object, page, or resource.", "type": "string" }, "description": { "description": "Brief description of the data; \n For datasets: What is included (variables, measurements), method/origin.\n For software: What it does, access requirements, supported languages.", "type": "string" }, "url": { "description": "URL to the website that contains and/or describes the digital object or person.", "type": "string", "format": "uri" }, "sameAs": { "description": "URL of a reference web page that unambiguously indicates the item's identity. Used to link to authoritative sources or alternative representations (e.g., ORCID profile, Wikidata entry).", "type": "string", "format": "uri" }, "conformsTo": { "description": "Established standards or specifications that this metadata adheres to (e.g., Schema.org, Bioschemas, Dublin Core, DCAT). Lists metadata schemas and domain-specific standards used.", "type": "array", "items": { "$ref": "#/$defs/ConformsToStandard" } }, "includedInDataCatalog": { "description": "A collection of datasets in which this resource is included. Links to the MIDAS Catalog or other data catalogs.", "$ref": "#/$defs/DataCatalogRef" }, "about": { "description": "Subject matter of the content. Contains DefinedTerm objects (topics, biological scales, types).", "type": "array", "items": { "type": "object", "additionalProperties": true } }, "dcSubject": { "description": "Topics or categories covered by the resource, using controlled vocabularies or keywords.", "type": "array", "items": { "type": "string" } }, "keywords": { "description": "Topical keywords describing the resource's subject, for discovery (e.g. Google Dataset Search).", "type": "array", "items": { "type": "string" } }, "endpointUrl": { "description": "Web page where users can browse information about the dataset and access download links.", "type": "string", "format": "uri" }, "inLanguage": { "description": "Primary language(s) of the resource content. Array of Language objects with ISO 639-2 language codes. Each language also carries a Lexvo ISO 639-3 sameAs cross-link when the 639-3 code is available.", "type": "array", "items": { "$ref": "#/$defs/Language" } }, "dcLanguage": { "description": "Language(s) of the resource content, using ISO 639-2 codes or language names.", "type": "array", "items": { "type": "string" } }, "creator": { "description": "Person(s) and/or organization(s) who created or compiled the data, each typed by the curated is_person flag (Person when set, otherwise Organization). May include ORCID identifiers. When none are recorded, a single-element array holding the MIDAS Coordination Center Organization.", "type": "array", "items": { "type": "object", "additionalProperties": true } }, "dctCreator": { "description": "Entity primarily responsible for creating the resource (person or organization).", "type": "array", "items": { "type": "string" } }, "datePublished": { "description": "Last date the resource was made available (publication or most recent update), from the curated Last Publication Date. ISO 8601 (YYYY-MM-DD). Absence is intentional: a blank value denotes a regularly/automatically-updated resource, and is emitted-absent when no date is recorded — never defaulted to a fabricated value.", "type": "string" }, "sdDatePublished": { "description": "Date MIDAS published this structured-data record (when curation of the record was completed). A fact about the metadata, not the dataset: it is never used as the dataset's datePublished. ISO 8601 (YYYY-MM-DD).", "type": "string" }, "dateModified": { "description": "Date the resource was last modified or updated. Format: ISO 8601 date (YYYY-MM-DD).", "type": "string" }, "modified": { "description": "Date the resource was last modified. Format: ISO 8601 date.", "type": "string" }, "issued": { "description": "Date the resource was made available (mirror of datePublished, from the curated Last Publication Date). Format: ISO 8601 date.", "type": "string" }, "catalogLicense": { "description": "License governing the metadata catalog itself. Separate from the license of the source data.", "$ref": "#/$defs/License" }, "dcCatalogLicense": { "description": "URI or name of the license governing this metadata catalog, aligned with Dublin Core.", "type": "string" }, "sourceLicense": { "description": "License governing the original source data or related resources.", "$ref": "#/$defs/License" }, "version": { "description": "Version identifier of the resource (numeric or named, e.g., '1.0', 'v2.3', 'beta').", "type": "string" }, "rights": { "description": "Usage rights and conditions for accessing or using the resource (e.g., 'Registration required', 'Academic use only').", "type": "string" }, "dctRights": { "description": "Statement of rights held in and over the resource, including usage conditions.", "type": "string" }, "accessibleForFree": { "description": "Boolean indicating whether the resource can be accessed at no cost to the user.", "type": "boolean" }, "dctAccessRights": { "description": "Information about who can access the resource and under what conditions (e.g., 'Open Access', 'Restricted Access').", "type": "string" }, "publisher": { "description": "Organization responsible for making the resource available. For MIDAS Catalog resources, this is the MIDAS Coordination Center.", "$ref": "#/$defs/Organization" }, "dctPublisher": { "description": "Entity responsible for making the resource available.", "type": "string" }, "places": { "description": "Array of Place objects with GeoNames references describing geographic locations covered by the resource.", "type": "array", "items": { "$ref": "#/$defs/Place" } }, "dctSpatial": { "description": "Geographic location(s) relevant to the resource, as place names or URIs.", "type": "array", "items": { "type": "string" } }, "temporalCoverage": { "description": "Date range covered by the data. Format: ISO 8601 interval (YYYY-MM-DD/YYYY-MM-DD or YYYY-MM-DD/... for ongoing).", "type": "string" }, "dcTemporal": { "description": "Time period(s) covered by the resource, as date range or temporal label.", "type": "string" }, "externalIdentifiers": { "description": "Array of external identifier strings (DOIs, URLs, etc.) that reference this resource in other systems.", "type": "array", "items": { "type": "string" } }, "relatedData": { "description": "Array of RelatedData (CreativeWork) objects describing publications, datasets, or other resources related to this resource.", "type": "array", "items": { "$ref": "#/$defs/RelatedDataItem" } }, "additionalProperty": { "type": "array", "items": { "type": "object", "properties": { "@type": { "type": "string" }, "name": { "type": "string" }, "description": { "type": "string" } } } }, "wasGeneratedBy": { "description": "Activity that generated this resource. Links to a prov:Activity describing the creation process.", "$ref": "#/$defs/ProvActivity" }, "wasDerivedFrom": { "description": "Source entities from which this resource was derived. Indicates transformation or construction from pre-existing data. Repeated once per source.", "type": "array", "items": { "$ref": "#/$defs/ProvEntity" } }, "pavCreatedBy": { "description": "Agent (person or organization) responsible for creating the resource. Similar to prov:wasGeneratedBy but more specific to authorship.", "$ref": "#/$defs/ProvAgent" }, "pavAuthoredBy": { "description": "Agent who authored the intellectual content. Similar to dcterms:creator but with versioning context.", "$ref": "#/$defs/ProvAgent" }, "pavDerivedFrom": { "description": "Source resources from which this version was derived, one IRI per source. Similar to prov:wasDerivedFrom with versioning emphasis.", "type": "array", "items": { "type": "string", "format": "uri" } }, "pavLastUpdateOn": { "description": "Date and time of the most recent update to the resource. ISO 8601 format.", "type": "string" }, "bibliographicCitation": { "description": "Recommended citation for the resource, including authorship, title, date, and URL. Follows standard academic citation format.", "type": "string" } }, "required": [ "description", "name" ], "additionalProperties": true }, "DatasetRecord": { "title": "Dataset", "description": "A dataset record (schema:Dataset). Epidemiological data, surveillance data, case counts, mortality data.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Dataset" }, "distributions": { "description": "Array of dcat:Distribution access points for the dataset, one per available data format (CSV, JSON, XML, etc.); each carries the landing page as dcat:accessURL.", "type": "array", "items": { "$ref": "#/$defs/DataDownload" } } }, "required": [ "@type" ] } ] }, "SoftwareApplicationRecord": { "title": "SoftwareApplication", "description": "A software application record (schema:SoftwareApplication). Modeling tools, simulation software, analysis packages.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/SoftwareApplication" }, "applicationCategory": { "description": "High-level category of the application (e.g., 'DataVisualization').", "type": "string" }, "applicationSubCategory": { "description": "More specific classification within the application category (e.g., 'data processing service', 'data processing tool').", "type": "string" }, "additionalType": { "description": "Additional ontology-based type classification beyond the primary @type. Uses URIs from domain ontologies (e.g., OBO ontology terms for more precise categorization).", "type": "string", "format": "uri" }, "encodingFormat": { "description": "File format or media type of a specific distribution (e.g., 'text/csv', 'application/json', 'application/xml'). Uses IANA media types.", "type": "array", "items": { "type": "string" } }, "programmingLanguage": { "description": "Programming language(s) used to create the software or code. Array of ComputerLanguage objects.", "type": "array", "items": { "$ref": "#/$defs/ComputerLanguage" } }, "operatingSystems": { "description": "Operating system(s) the software runs on, each a schema:OperatingSystem node carrying a name and (from the dbpedia resource IRI) an @id.", "type": "array", "items": { "$ref": "#/$defs/OperatingSystem" } }, "codeRepository": { "description": "URL of the source code repository (e.g., GitHub, GitLab, Bitbucket).", "type": "string", "format": "uri" } }, "required": [ "@type" ] } ] }, "DataCatalogRecord": { "title": "DataCatalog", "description": "A data catalog record (schema:DataCatalog / dcat:Catalog). Collections of datasets, data portals.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "const": [ "https://schema.org/DataCatalog", "dcat:Catalog" ] }, "types": { "type": "array", "items": { "type": "string" } } }, "required": [ "@type" ] } ] }, "DashboardRecord": { "title": "Dashboard", "description": "A dashboard record (schema:SoftwareApplication with applicationCategory 'Dashboard'). Interactive data visualization tools.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/SoftwareApplication" }, "applicationCategory": { "description": "High-level category of the application (e.g., 'DataVisualization').", "type": "string" }, "applicationSubCategory": { "description": "More specific classification within the application category (e.g., 'data processing service', 'data processing tool').", "type": "string" }, "additionalType": { "description": "Additional ontology-based type classification beyond the primary @type. Uses URIs from domain ontologies (e.g., OBO ontology terms for more precise categorization).", "type": "string", "format": "uri" }, "encodingFormat": { "description": "File format or media type of a specific distribution (e.g., 'text/csv', 'application/json', 'application/xml'). Uses IANA media types.", "type": "array", "items": { "type": "string" } }, "programmingLanguage": { "description": "Programming language(s) used to create the software or code. Array of ComputerLanguage objects.", "type": "array", "items": { "$ref": "#/$defs/ComputerLanguage" } }, "operatingSystems": { "description": "Operating system(s) the software runs on, each a schema:OperatingSystem node carrying a name and (from the dbpedia resource IRI) an @id.", "type": "array", "items": { "$ref": "#/$defs/OperatingSystem" } }, "codeRepository": { "description": "URL of the source code repository (e.g., GitHub, GitLab, Bitbucket).", "type": "string", "format": "uri" } }, "required": [ "@type" ] } ] }, "RepositoryRecord": { "title": "Repository", "description": "A repository record (schema:DataCatalog, specialized). Code repositories, institutional archives.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "const": [ "https://schema.org/DataCatalog", "dcat:Catalog" ] }, "types": { "type": "array", "items": { "type": "string" } } }, "required": [ "@type" ] } ] }, "LiteratureRecord": { "title": "Literature", "description": "A literature collection record (schema:Collection). Collections of academic publications.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Collection" }, "genre": { "description": "Literary or artistic genre of the work (e.g., 'research literature', 'modeling studies', 'disease-specific collection').", "type": "string" }, "additionalType": { "description": "Additional ontology-based type classification beyond the primary @type. Uses URIs from domain ontologies (e.g., OBO ontology terms for more precise categorization).", "type": "string", "format": "uri" } }, "required": [ "@type" ] } ] }, "ModelingStudyRecord": { "title": "ModelingStudy", "description": "A modeling studies record (schema:Collection, Literature subtype). Collections of modeling papers.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Collection" }, "genre": { "description": "Literary or artistic genre of the work (e.g., 'research literature', 'modeling studies', 'disease-specific collection').", "type": "string" }, "additionalType": { "description": "Additional ontology-based type classification beyond the primary @type. Uses URIs from domain ontologies (e.g., OBO ontology terms for more precise categorization).", "type": "string", "format": "uri" } }, "required": [ "@type" ] } ] }, "DiseaseSpecificCollectionRecord": { "title": "DiseaseSpecificCollection", "description": "A disease-specific collection record (schema:Collection, Literature subtype).", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Collection" }, "genre": { "description": "Literary or artistic genre of the work (e.g., 'research literature', 'modeling studies', 'disease-specific collection').", "type": "string" }, "additionalType": { "description": "Additional ontology-based type classification beyond the primary @type. Uses URIs from domain ontologies (e.g., OBO ontology terms for more precise categorization).", "type": "string", "format": "uri" } }, "required": [ "@type" ] } ] }, "LearningResourceRecord": { "title": "LearningResource", "description": "An educational resource record (schema:LearningResource). Courses, tutorials, workshops for infectious disease modeling.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/LearningResource" }, "educationalLevel": { "description": "Target education level(s) for this learning resource (e.g., 'Graduate', 'Professional', 'General Public'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "educationalUse": { "description": "Purpose or use case for this learning resource (e.g., 'Classroom Instruction', 'Self-Paced Learning', 'Workshop Activity'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "audience": { "description": "Intended audience for the resource (e.g., 'infectious disease modelers', 'public health officials').", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "educationalObjective": { "description": "Learning objectives or outcomes that this resource is designed to achieve (e.g., 'Understanding SIR Models', 'Data Literacy', 'Scenario Analysis'). Array of DefinedTerm objects. LRMI extension.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "competencyRequired": { "description": "Prerequisites or prior knowledge required to effectively use this learning resource (e.g., 'Basic Statistics', 'Python Fundamentals', 'Calculus'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "teaches": { "description": "Knowledge, skill, or competency that learners can expect to acquire from this resource. Array of DefinedTerm objects representing topics or concepts taught.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "learningResourceType": { "description": "Format or presentation type of the learning resource (e.g., 'Online', 'Interactive', 'Video', 'Textbook'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "provider": { "description": "Organization(s) that provide or host this learning resource. Array of Organization objects.", "type": "array", "items": { "$ref": "#/$defs/Organization" } }, "timeRequired": { "description": "Approximate time required to complete the learning resource. Format: ISO 8601 duration (e.g., 'PT5H' for 5 hours, 'P2D' for 2 days).", "type": "string" }, "programmingLanguage": { "description": "Programming language(s) used to create the software or code. Array of ComputerLanguage objects.", "type": "array", "items": { "$ref": "#/$defs/ComputerLanguage" } }, "dataRequirement": { "description": "Type of data required or used by this learning resource (e.g., 'Synthetic data', 'Real-World datasets', 'none'). DefinedTerm object. LRMI extension.", "$ref": "#/$defs/DefinedTerm" } }, "required": [ "@type" ] } ] }, "CourseRecord": { "title": "Course", "description": "A course record (schema:Course): an educational resource flagged as a course, with delivery modes carried on a nested CourseInstance.", "allOf": [ { "$ref": "#/$defs/CreativeWorkProperties" }, { "type": "object", "properties": { "@type": { "type": "string", "const": "https://schema.org/Course" }, "hasCourseInstance": { "description": "An offering of this course through a specific mode of study. CourseInstance object; present only when the resource is marked as a course.", "$ref": "#/$defs/CourseInstance" }, "educationalLevel": { "description": "Target education level(s) for this learning resource (e.g., 'Graduate', 'Professional', 'General Public'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "educationalUse": { "description": "Purpose or use case for this learning resource (e.g., 'Classroom Instruction', 'Self-Paced Learning', 'Workshop Activity'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "audience": { "description": "Intended audience for the resource (e.g., 'infectious disease modelers', 'public health officials').", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "educationalObjective": { "description": "Learning objectives or outcomes that this resource is designed to achieve (e.g., 'Understanding SIR Models', 'Data Literacy', 'Scenario Analysis'). Array of DefinedTerm objects. LRMI extension.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "competencyRequired": { "description": "Prerequisites or prior knowledge required to effectively use this learning resource (e.g., 'Basic Statistics', 'Python Fundamentals', 'Calculus'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "teaches": { "description": "Knowledge, skill, or competency that learners can expect to acquire from this resource. Array of DefinedTerm objects representing topics or concepts taught.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "learningResourceType": { "description": "Format or presentation type of the learning resource (e.g., 'Online', 'Interactive', 'Video', 'Textbook'). Array of DefinedTerm objects.", "type": "array", "items": { "$ref": "#/$defs/DefinedTerm" } }, "provider": { "description": "Organization(s) that provide or host this learning resource. Array of Organization objects.", "type": "array", "items": { "$ref": "#/$defs/Organization" } }, "timeRequired": { "description": "Approximate time required to complete the learning resource. Format: ISO 8601 duration (e.g., 'PT5H' for 5 hours, 'P2D' for 2 days).", "type": "string" }, "programmingLanguage": { "description": "Programming language(s) used to create the software or code. Array of ComputerLanguage objects.", "type": "array", "items": { "$ref": "#/$defs/ComputerLanguage" } }, "dataRequirement": { "description": "Type of data required or used by this learning resource (e.g., 'Synthetic data', 'Real-World datasets', 'none'). DefinedTerm object. LRMI extension.", "$ref": "#/$defs/DefinedTerm" } }, "required": [ "@type" ] } ] } }, "anyOf": [ { "$ref": "#/$defs/DatasetRecord" }, { "$ref": "#/$defs/SoftwareApplicationRecord" }, { "$ref": "#/$defs/DataCatalogRecord" }, { "$ref": "#/$defs/DashboardRecord" }, { "$ref": "#/$defs/RepositoryRecord" }, { "$ref": "#/$defs/LiteratureRecord" }, { "$ref": "#/$defs/ModelingStudyRecord" }, { "$ref": "#/$defs/DiseaseSpecificCollectionRecord" }, { "$ref": "#/$defs/LearningResourceRecord" }, { "$ref": "#/$defs/CourseRecord" } ] }