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Narodne novine ELI implementation

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Introduction


An introduction to the European Legislation Identifier is given here.

Narodne novine d.d. as the publisher of the Croatian official gazette has taken steps to implement ELI. The implementation will be done in three phases (pillars): ELI URIs, ELI metadata scheme, and ELI machine-readable metadata access.

As of Jan 2020, the NN web implements the first phase (ELI URIs), and as of mid-2022, the NN web implements the second phase (ELI metadata scheme). The third phase is expected to be published in the first half of 2023.

To use the ELI metadata we introduce the NN vocabularies that are described here. Each of them is available for download in the RDF/XML format.


Pillar I - ELI HTTP URIs


I.1 Narodne novine ELI URLs

As of Jan 2020, the whole content of the website https://narodne-novine.nn.hr/ may be accessed through ELI URLs in parallel to the existing NN URL scheme.

For example, the new ELI URL scheme applied to a document looks like this:

https://narodne-novine.nn.hr/eli/sluzbeni/2019/111/2233

What is equivalent to the existing NN URL scheme as follows:

https://narodne-novine.nn.hr/clanci/sluzbeni/2019_11_111_2233.html

I.2 ELI URL scheme

The basic scheme may be explained like this:

/eli/<part>/<year>/<number>/<act number>/<language>/<format>

where

<part> is "sluzbeni" or "medunarodni" (official or international)

<year> is a four-digit number, denotes the official year of journal publication

<number> is a positive number, denotes the number of the journal within the chosen year

<act number> is an alpha-numeric sequence, denotes the number of the legislative act (very rarely contains letters)

<language> is a three-letter code denoting the language of the legislative act (according to ISO 639-3)

<format> is a sequence denoting the type of document format, at the moment only some documents are "pdf", and others are "html" or "printhtml"

Format and language specifiers are optional.

I.3 Language

The language metadata is encoded as a three-letter code according to the ISO 639-3 standard. Additionally, the value "mul" may be specified meaning "multilanguage". For example, all of the following three links go to the very same document because it is a bilingual document containing Croatian and Italian parts.

The language specifier is optional.

https://narodne-novine.nn.hr/eli/sluzbeni/2019/81/1703/hrv

https://narodne-novine.nn.hr/eli/sluzbeni/2019/81/1703/ita

https://narodne-novine.nn.hr/eli/sluzbeni/2019/81/1703/mul

I.4 Format

The "html" format is the default format and represents the way pages are shown when found and browsed in the search engine.

https://narodne-novine.nn.hr/eli/sluzbeni/2019/114/2282/hrv/html

The "printhtml" format contains the exact same legislative content as the "html" format, but presents the content in a clutterless way to enable easier printing (no menus, no metadata, without page graphics) and also bares a short title and date at the top of the document.

https://narodne-novine.nn.hr/eli/sluzbeni/2019/114/2282/hrv/html

In order to get the print version of the document, we may change just the format specifier value:

https://narodne-novine.nn.hr/eli/sluzbeni/2019/114/2282/hrv/printhtml

The "pdf" format is enabled and some documents are of this format, but more is expected in the future. Here is an example of a document available in PDF format:

https://narodne-novine.nn.hr/eli/sluzbeni/2019/117/2334/hrv/pdf

If no format specifier is supplied, it will try to default to "html", and if "html" is unavailable, then it will default to "pdf".

I.5 Errors

If wrong ELI codes are queried, an error page will be returned just like in standard handling of wrong requests and errors.

I.6 Sitemap

All ELI variants of URLs exist side-by-side with original NN URLs in the (sub)sitemaps of the NN search site.

For example, the sitemap of the 2017 second edition of the international part ("medunarodni") of the OG (Official gazette)

https://narodne-novine.nn.hr/sitemap_2_2017_2.xml

shows two links for each legislative document it addresses:

https://narodne-novine.nn.hr/clanci/medunarodni/2017_03_2_2.html
https://narodne-novine.nn.hr/eli/medunarodni/2017/2/

I.7 ELI partial URL schemes

Partial ELI URL schemes are enabled on the NN site, so we may access the legislative documents within one year like this:

https://narodne-novine.nn.hr/eli/sluzbeni/1990/

https://narodne-novine.nn.hr/eli/medunarodni/2019/

More precisely, the ELI partial URL scheme is:

/eli/<part>/<year>/<number>

where

<part> is "sluzbeni" or "medunarodni" (official or international)

<year> is a four-digit number, denotes the official year of journal publication

<number> is a positive number, denotes the number of the journal within the chosen year

The number specifier is optional. If not supplied (like in the previous two examples), all documents of the chosen year will be listed. So, if the number of OG is specified

https://narodne-novine.nn.hr/eli/medunarodni/2019/1

then only legislative acts published in the chosen journal will be listed.

Wrong years or non-existent journal numbers will be treated as errors.

I.8 ELI title specifier

Sometimes, it may be convenient to address the document's title in its very URL instead of specifying its numeric identifier. For this case, we have a solution that enables URL title queries for a chosen part, year, and number.

For example, the legislative act

https://narodne-novine.nn.hr/eli/sluzbeni/1990/1/1

May also be accessed like this:

https://narodne-novine.nn.hr/eli/sluzbeni/1990/1?title=Odluka o donošenju Prostornog plana Nacionalnog parka »Krka«

Since punctuation may vary (as seen in the previous example), we implemented the title search to be prone to all punctuation and whitespace variations. Hence, the following URL will fetch the very same document:

https://narodne-novine.nn.hr/eli/sluzbeni/1990/1/?title=Odluka o donošenju Prostornog plana Nacionalnog parka Krka

ELI may be used in language contexts far away from Croatian, so some users using the ELI URLs will find it difficult to input letters specific to the Croatian language. For this case, we made title specification prone to letter diacritics variation. Therefore, the following URL will fetch the very same document:

https://narodne-novine.nn.hr/eli/sluzbeni/1990/1/?title=Odluka o donosenju Prostornog plana Nacionalnog parka Krka

In rare cases, two documents published in the same OG may have an identical title which makes the ELI title query ambivalent. In the case of such ambivalence, a "Not Found" notice is generated.


Pillar II - ELI metadata scheme


The used ELI ontology is version 1.3, please refer here.

For each published document in the NN search engine, ELI metadata is generated dynamically at the time the document is loaded. This means that the mapping of the metadata of the NN - eSL database into individual ELI metadata is defined, and the published ELI metadata will always reflect the latest version of the published legislative act's metadata.

The ELI metadata with its meaning and examples of values in individual posts are described below. The implemented ELI metadata are:

  • typeof
  • type_document
  • language
  • title
  • realizes
  • embodies
  • format
  • number
  • is_about
  • date_document
  • date_publication
  • publisher
  • passed_by
  • first_date_entry_in_force
  • date_no_longer_in_force
  • in_force
  • date_applicability
  • relations between acts (basis_for, basis_on, amended_by, amends, changed_by, changes, related_to, repealed_by, repeals, corrected_by, corrects, consolidates, consolidated_by, cited_by_case_law)
  • extern relations between acts (transpostion links to EU directives — transposes, transposed_by)

Currently (as of 2023), the ELI metadata are available for all NN content from 2015 onwards. The metadata first_date_entry_in_force, date_no_longer_in_force, in_force, and date_applicability will also be published soon.

II.1 The typeof metadata

Each document has an automatically defined metadata of the type "LegalResource" from the ELI ontology since each document published within the 'official part' ('službeni dio') and 'international part' ('međunarodni dio') is a legislative document.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2019/98/1913 has the RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2019/98/1913" typeof="http://data.europa.eu/eli/ontology#LegalResource"/>

II.2 The type_document metadata

This metadata defines the type of document that has been published (law, decision, solution, etc.). The metadata is mandatory and will always be output in a set of published ELI metadata for one NN document. To define our document types, a special NN thesaurus available at the address is used:
https://narodne-novine.nn.hr/resource/authority/document-type.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2019/98/1913 has the RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2019/123/2451" property="http://data.europa.eu/eli/ontology#type_document" resource="https://narodne-novine.nn.hr/resource/authority/document-type/ZAKON"/>

II.3 The language metadata

This metadata defines the language(s) in which the document is written. To the greatest extent, it is the Croatian language, but there are also multilingual documents in the NN database. Multilinguality always applies to the entire document. The metadata is mandatory and will always be output in a set of published ELI metadata for one NN document. The thesaurus of the European Union is used, available at:
http://publications.europa.eu/resource/authority/language.
This thesaurus is defined using the ISO 369-3 standard for declaring languages.

For example, the document https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70 has the RDFa tags:
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv" property="http://data.europa.eu/eli/ontology#language" resource="http://publications.europa.eu/resource/authority/language/HRV"/> <meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/eng" property="http://data.europa.eu/eli/ontology#language" resource="http://publications.europa.eu/resource/authority/language/ENG"/>

II.4 The title metadata

Naturally, this metadata defines the title of the document. The metadata is mandatory and will always be output in a set of published ELI metadata for one NN document. The format of the metadata is a sequence of characters (string).

For example, the document https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70 has the RDFa tags:
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv" property="http://data.europa.eu/eli/ontology#title" content="Zakon o potvrđivanju Sveobuhvatnog i pojačanog sporazuma o partnerstvu između Europske unije i Europske zajednice za atomsku energiju i njihovih država članica, s jedne strane, i Republike Armenije, s druge strane" datatype="http://www.w3.org/2001/XMLSchema#string"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/eng" property="http://data.europa.eu/eli/ontology#title" content="Zakon o potvrđivanju Sveobuhvatnog i pojačanog sporazuma o partnerstvu između Europske unije i Europske zajednice za atomsku energiju i njihovih država članica, s jedne strane, i Republike Armenije, s druge strane" datatype="http://www.w3.org/2001/XMLSchema#string"/>

II.5 The realizes metadata

This metadata defines the existence of the realization of the regulation as a written document in a certain set of languages. The metadata is mandatory and will always be output in a set of published ELI metadata for one NN document. The metadata is output for all defined languages of regulations (see the "language" metadata).

For example, the document https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70 will have two RDFa tags for the Croatian language:
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv" property="http://data.europa.eu/eli/ontology#realizes" resource="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70" property="http://data.europa.eu/eli/ontology#is_realized_by" resource="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv"/>

Based on the ELI ontology and its semantics, we see that a written document
https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv
is the "legal expression" of the "more abstract" document
https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70

II.6 The embodies and format metadata

These metadata define the "manifestation" of a "legal expression". More specifically, it is a case of format and type of file used to store the document of the legal regulation. The metadata is mandatory and will always be output in a set of published ELI metadata for one NN document. For the objects of the triplets, the IANA thesaurus is used:
https://www.iana.org/assignments/media-types/application/.

For example, the document https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70 has the following RDFa tags for each language (each "realization" of a "legal expression"):
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/html" property="http://data.europa.eu/eli/ontology#embodies" resource="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv" property="http://data.europa.eu/eli/ontology#is_embodied_by" resource="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/html"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/html" typeof="http://data.europa.eu/eli/ontology#Format"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/html" property="http://data.europa.eu/eli/ontology#format" resource="http://www.iana.org/assignments/media-types/application/html"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/printhtml" property="http://data.europa.eu/eli/ontology#embodies" resource="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv" property="http://data.europa.eu/eli/ontology#is_embodied_by" resource="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/printhtml"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/printhtml" typeof="http://data.europa.eu/eli/ontology#Format"/>
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/printhtml" property="http://data.europa.eu/eli/ontology#format" resource="http://www.iana.org/assignments/media-types/application/html"/>

Similarly to the situation at the "realizes" metadata, we see that the HTML document
https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv/html
is the "manifestation" of the written document
https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70/hrv

II.7 The number metadata

This metadata defines the number of a legislative act within the year of publication. The metadata value is unique within one year and one part type ('službeni'/'međunarodni'). Usually, this number is present at the first or second line of the document's print layout, right aligned. The metadata is mandatory and will always be output in a set of published ELI metadata for one NN document. Nowadays the metadata is numeric, but in rare cases in the past, some letter addendums were present, so the metadata is an alphanumeric sequence of characters (string).

For example, the document https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/medunarodni/2019/9/70" property="http://data.europa.eu/eli/ontology#number" content="70" datatype="http://www.w3.org/2001/XMLSchema#string"/>

In addition to being separate metadata, the legislative act number is contained in the scheme of each identification URI address of a particular regulation as its last component (in this case "70").

II.8 The is_about metadata

These metadata define the semantic tags which are based on the content of the document and were assigned by human annotators. The semantic tags are realized as relations (references) to four thesauri. We define three NN thesauri available here:
https://narodne-novine.nn.hr/eli/vocabularies/nn-content-type
https://narodne-novine.nn.hr/eli/vocabularies/nn-legal-area
https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms
Naturally, these thesauri respectively define the document's "content type", "legal area", and keywords ("index terms").

Additionally, the activities described in the document's content are tagged with the EuroVoc thesaurus. Please refer here:
http://eurovoc.europa.eu/

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33 has the following RDFa tags:
<!-- semantic tags (Eurovoc) -->
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="http://eurovoc.europa.eu/1172"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="http://eurovoc.europa.eu/194"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="http://eurovoc.europa.eu/8465"/>
<!-- semantic tags (Legal area) -->
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-legal-area/26"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-legal-area/28"/>
<!-- semantic tags (NN content type) -->
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-content-type/1"/>
<!-- semantic tags (NN index terms) -->
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms/1235"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms/2150"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms/3473"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms/10351"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms/10418"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2023/3/33" property="http://data.europa.eu/eli/ontology#is_about" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-index-terms/10421"/>

II.9 The date_document metadata

This metadata defines the date when the legal document was passed by. It can be the date of the session held by the responsible legal body (institution) on which the document was approved, or it can be the date when the document was signed by the responsible person on behalf of the responsible legal body (institution). Naturally, the metadata type is 'date'.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2019/119/2362 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2019/119/2362" property="http://data.europa.eu/eli/ontology#date_document" content="2019-12-05" datatype="http://www.w3.org/2001/XMLSchema#date"/>

II.10 The first_date_entry_in_force metadata

This metadata defines the first date when the document was legally put into force. In most cases, legal documents come to force at once and then this metadata is the date when it occurs. If a document comes to force partially, then this date is when the first portion of the legal document comes into force. Naturally, the metadata type is 'date'.

Note that this metadata can be a date in the future and that it can change if putting into force depends on an event unknown at the time of writing the legal document.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2019/119/2362 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2019/119/2362" property="http://data.europa.eu/eli/ontology#first_date_entry_in_force" content="2019-12-05" datatype="http://www.w3.org/2001/XMLSchema#date"/>

II.11 The date_no_longer_in_force metadata

This metadata defines the date when the document was legally fully put out of force. Naturally, the metadata type is 'date'.

Note that this metadata is susceptible to one change at some point in time, since most legal documents do not have an expiry date and are usually repealed by other legal documents which are published later.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#date_no_longer_in_force" content="2018-12-31" datatype="http://www.w3.org/2001/XMLSchema#date"/>

II.12 The in_force metadata

This metadata defines if the document is in force at the time of fetching the metadata. The in_force metadata may take on the following values from the ELI ontology:

  • InForce-notInForce — not yet in force or already fully put out of force
  • InForce-inForce — fully in force
  • InForce-partiallyInForce — a part of the document is in force (e.g. a subset of its articles or clauses)

Note that this metadata is susceptible to changes in time. Legal documents are published and come to force later or immediately in full or partially, and after some time they may be put out of force.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#in_force" resource="http://data.europa.eu/eli/ontology#InForce-notInForce"/>

II.13 The relations metadata

These metadata define the relations between two legal documents within the NN database may have between them.

The ELI ontology does not have a 1:1 mapping of the Croatian legal tradition and its relations between legislative documents. We could say that the Croatian legal relations are more specific, while the ELI ontology is broader in meaning. For example, in Croatian legal tradition, we have three different relations which are all covered in ELI with the relation based_on/basis_for. Also, the ELI relation of "amending" in Croatian is distinct by additions and changes (insertions and modifications).

The following table sets the mapping of relations between Croatian legal documents in the NN database to the relations in the ELI ontology. Note that the original terms are sometimes used as document type names ('izmjene i dopune') and are generally to be found directly in the legal texts which define these relations. The columns 'AtoB' and 'BtoA' define the names of documents towards each other in one relationship.

ELI relations (English) NN relations (Croatian, original meaning)
Relation name Relation name AtoB BtoA
based_on, basis_for podzakonski akt temeljni propis podzakonski akt
amends, amended_by, changes, changed_by izmjenjivanje i dopunjavanje osnovni dokument izmjene i dopune
related_to povezani propisi povezani dokument povezani dokument
repeals, repealed_by ukidanje ukinuti propis propis koji ga ukida
amends, amended_by, changes, changed_by izmjenjivanje osnovni dokument izmjene
amends, amended_by, changes, changed_by dopunjavanje osnovni dokument dopune
based_on, basis_for osnova donošenja temeljni propis propis donesen na temelju
corrects, corrected_by ispravljanje osnovni dokument ispravak
based_on, basis_for pojedinačni dokument pojedinačni pravni akt temeljni propis'
consolidated_by, consolidates pročišćeni tekst osnovni dokument pročišćeni tekst
related_to, cited_by_case_law sudska praksa sudska praksa povezani dokument
related_to povezani za p.t. osnovni dokument povezani dokument (za p.t.)
transposes, transposed_by implementacija europskog prava (Direktive) nacionalno pravo europsko pravo (implementacija Direktiva)

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931 has the following RDFa tags:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#amended_by" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2018/51/1014"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#changed_by" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2018/51/1014"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#amended_by" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2018/91/1781"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#changed_by" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2018/91/1781"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2005/140/2639"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2008/88/2812"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2014/19/361"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2014/19/362"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2016/44/1135"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2013/16/265"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2015/30/611"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2014/22/399"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2013/153/3223"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2013/141/3011"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2017/128/2931" property="http://data.europa.eu/eli/ontology#based_on" resource="https://narodne-novine.nn.hr/eli/sluzbeni/2014/94/1883"/>

II.14 The extern relations metadata

For now, these are defined by the transposition links to the EU directives. These metadata are implemented in the same way as the relations metadata, but point to extern resources.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2022/151/2336 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2022/151/2336" property="http://data.europa.eu/eli/ontology#transposes" resource="https://eur-lex.europa.eu/eli/reg/2013/575/oj"/>

II.15 The publisher metadata

This metadata defines the name of the document's publisher. For the metadata publisher, all documents in the NN database have the value "Narodne novine".

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2021/2/21 has the following RDFa tags:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2021/2/21/hrv" property="http://data.europa.eu/eli/ontology#publisher" content="Narodne novine" datatype="http://www.w3.org/2001/XMLSchema#string"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2021/2/21/hrv/html" property="http://data.europa.eu/eli/ontology#publisher" content="Narodne novine" datatype="http://www.w3.org/2001/XMLSchema#string"/>
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2021/2/21/hrv/printhtml" property="http://data.europa.eu/eli/ontology#publisher" content="Narodne novine" datatype="http://www.w3.org/2001/XMLSchema#string"/>

II.16 The date_applicability metadata

This metadata defines when a legislative document is being applied if it is defined in the text content. This metadata is often present in cases of partial enforcement. Naturally, the type of this literal metadata is "date".

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2021/3/70 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2021/3/70" property="http://data.europa.eu/eli/ontology#date_applicability" content="2021-01-01" datatype="http://www.w3.org/2001/XMLSchema#date"/>

II.17 The date_publication metadata

This metadata defines the official date of the printed edition of Narodne novine in which the document was published. Naturally, the type of this literal metadata is "date".

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/2019/98/1913 has the following RDFa tag:
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2019/98/1913" property="http://data.europa.eu/eli/ontology#date_publication" content="2019-10-16" datatype="http://www.w3.org/2001/XMLSchema#date"/>

II.18 The passed_by metadata

This metadata defines the institution or other legal entity which passed the legislative document. To define the legal bodies, a special NN thesaurus available at the address is used:
https://narodne-novine.nn.hr/eli/vocabularies/nn-institutions.

For example, the document https://narodne-novine.nn.hr/eli/sluzbeni/sluzbeni/2019/98/1913 has the following RDFa tag pointing to the institution of Hrvatski sabor (Croatian parliament):
<meta about="https://narodne-novine.nn.hr/eli/sluzbeni/2019/98/1913" property="http://data.europa.eu/eli/ontology#passed_by" resource="https://narodne-novine.nn.hr/eli/vocabularies/nn-institutions/19505" />


Pillar III - ELI machine-readable metadata access


III.1 NN vocabularies

The NN vocabularies are described here. Each of them is available for download in the RDF/XML format.

III.2 Metadata in the RDFa format

As we have seen in the previous section, the ELI metadata is embedded within each HTML document as a set of RDFa tags which are defined in the previous section.

III.3 Metadata in the RDF/XML format

Each ELI URI can trivially be extended with an /rdf suffix in order to get the RDF/XML formatted metadata. Of course, these metadata are identical to the ones embedded as RDFa tags within each document's HTML format. In part, this endpoint serves the users by enabling them to easily fetch only metadata without the actual document's content.

For example, the URI of the document
https://narodne-novine.nn.hr/eli/sluzbeni/sluzbeni/2019/98/1913
can be suffixed with /rdf so that the URI
https://narodne-novine.nn.hr/eli/sluzbeni/sluzbeni/2019/98/1913/rdf is obtained.
Using it, the user may fetch only the document's metadata in the RDF/XML format.

III.4 Metadata in the JSON-LD format

Each ELI URI can trivially be extended with an /json-ld suffix in order to get the JSON-LD formatted metadata. Of course, these metadata are identical to the ones embedded as RDFa tags within each document's HTML format. In part, this endpoint serves the users by enabling them to easily fetch only metadata without the actual document's content.

For example, the URI of the document
https://narodne-novine.nn.hr/eli/sluzbeni/sluzbeni/2019/98/1913
can be suffixed with /json-ld so that the URI
https://narodne-novine.nn.hr/eli/sluzbeni/sluzbeni/2019/98/1913/json-ld is obtained.
Using it, the user may fetch only the document's metadata in the JSON-LD format.

III.5 Unified API access to all metadata

Fetching lists of all editions and acts in JSON format as well as fetching all metadata in RDF/XML and JSON-LD formats is available using the NN API access to data.




Document version 1.2, 21st Apr 2023