Metax Datamodel and DCAT 3

Metax is fully compatible with DCAT 3 data-model, but has some minor variations allowed by the specification. This article will explain how DCAT is integrated into Metax V3 data-model.

Note

This comparison is comparing DCAT concepts to equivalent Metax database Models. V3 classes have Django application name in front of them.

DCAT classes

This comparison is comparing DCAT concepts to equivalent Metax database Models. V3 classes have Django application name in front of them.

DCAT 3 class	V3 equivalent
Catalog	core.DataCatalog
CatalogRecord	core.CatalogRecord
Checksum	N/A
Concept	refdata.AbstractConcept
DataService	files.FileStorage.storage_service
Dataset	core.Dataset
Dataset Series	N/A
Distribution	N/A
Location	core.Spatial
N/A	files.Directory
N/A	files.File
Organization	actor.Organization
Period of Time	core.Temporal
Person	actor.MetaxUser
Role	core.DatasetActor

Properties

Catalog

DCAT 3 property	V3 equivalent
access rights	N/A
catalog record	records
creator	system_creator
dataset	records
homepage	publisher.homepage
language	language
license	N/A
publisher	publisher
resource	N/A
themes	dataset/theme
title	title

Catalog Record

DCAT 3 property	V3 equivalent
conforms to	N/A
listing date	created
title	dataset.title
modification date	modified

Dataset

DCAT 3 property	V3 equivalent
access rights	access_rights
description	description
distribution	N/A
frequency	N/A
identifier	persistent_identifier
in series	N/A
keyword	keyword
language	language
license	access_rights.license
N/A	field_of_science
release date	issued
spatial coverage	spatial
spatial resolution	N/A
status	state
temporal coverage	temporal
temporal resolution	N/A
theme	theme
title	title
was generated by	creator

PeriodOfTime

DCAT 3 property	V3 equivalent
beginning	N/A
end	N/A
end date	end_date
start date	start_date

Location

DCAT 3 property	V3 equivalent
bounding_box	N/A
centroid	N/A
geometry	as_wkt