This page defines the classes and associated properties that are part of the IIIF to EDM profile. In EDM, IIIF resources representing a cultural object are modelled as instances of the edm:WebResource class, like many other digital representations.

Note: Some of the properties already covered in the basic EDM Definitions (edm:isShownBy, edm:hasView, edm:object) are excluded from this section.

Table of contents:

1 Overview
2 Classes
- 2.1 svcs:Service
3 Properties
- 3.1 dcterms:conformsTo
- 3.2 doap:implements
- 3.3 svcs:has_service
- 3.4 dcterms:isReferencedBy

Overview

Below is an overview of classes and properties for the IIIF to EDM profile:

Overview of classes and properties for the IIIF to EDM profile

Classes

svcs:Service

URI	http://rdfs.org/sioc/services#
Label	Service
Definition	A Service is web service associated with a Site or part of it. The `svcs:Service` class is used to declare (and provide information to) the service used to consume the Resource
Example	`<svcs:Service rdf:about="https://gallica.bnf.fr/iiif/ark:/12148/btv1b55001425m/f1"/>`

Properties

dcterms:conformsTo

URI	`http://purl.org/dc/terms/conformsTo`
Label	ConformsTo
Definition	An established standard to which the web resource or service conforms. W3C WCAG 2.0 (web content accessibility guidelines). If the Service describes a IIIF resource, dcterms:conformsTo must be used to describe the IIIF protocol the resource is conforming to.
Domain	svcs:Service
Subproperty	dc:relation
Occurence	Mandatory (Minimum: 1, Maximum: unbounded) For IIIF Image API services, the value of this property must be `http://iiif.io/api/image`
Example	`<dcterms:conformsTo rdf:resource="http://iiif.io/api/image"/>`

doap:implements

URI	`http://usefulinc.com/ns/doap#`
Label	Implements
Definition	A specification that a project implements. Could be a standard, API or legally defined level of conformance. In IIIF `doap:implements` refers to the the protocol implemented in IIIF.
Domain	svcs:Service
Occurrence	Optional (Minimum: 0, Maximum: 1)
Example	`<doap:implements rdf:resource="http://iiif.io/api/image/2/level1.json"/>`

svcs:has_service

URI	`http://rdfs.org/sioc/services#`
Label	HasService
Definition	The identifier of the `svcs:Service` required to consume the edm:WebResource.
Domain	edm:WebResource
Occurence	Optional (Minimum: 0, Maximum: unbounded) This property is mandatory for IIIF web resources.
Example	`<svcs:has_service rdf:resource="http://www.example.org/Service/IIIF">`

dcterms:isReferencedBy

URI	`http://purl.org/dc/terms/isReferencedBy`
Label	IsReferencedBy
Definition	A related resource that references, cites, or otherwise points to the described resource. In IIIF, `dcterms:isReferencedBy` can be used to connect an edm:WebResource to a IIIF manifest URI.
Domain	`edm:WebResource`
Subproperty	`dc:relation`
Occurence	Optional (Minimum: 0, Maximum: unbounded)
Example	`<dcterms:isReferencedBy rdf:resource="https://gallica.bnf.fr/iiif/ark:/12148/btv1b55001425m/manifest.json"/>`

IIIF to EDM profile (definitions)