Graphical overview of the metadata

Introduction

This is the graphical overview of our metadata.

Unless specified otherwise, the diagrams apply to all versions of the API.

In the diagrams and in the accompanying text, we'll use the following prefixes:

Some conventions for the diagrams:

• The fill color of a concept indicates its collection membership. This indications implies a skos:member relation.
• Inverse relations (such as skos:narrower as the inverse of skos:broader) are not shown; the are implemented in the data however.
• Transitive relations (such asskos:broaderTransitive for one or more skos:broader) are not shown; the are implemented in the data however.
• Symmetrical relations (such asskos:related) are shown in one direction only; the other direction is also implemented in the data however.

Curricula

Curriculum lager onderwijs

Figure 1

Figure 1: curriculum lager onderwijs: all collections, some example concepts and how they are related.

• All concepts are member of the collection lager onderwijs.
• Each concept is member of its corresponding collection.
• The hierarchy between lager onderwijs concepts is expressed using skos:broader.
• The trefwoorden are not hierarchical.
• The relation between thema1 and leergebied2 is expressed using skos:related.
• The relation between trefwoord1 and thema1is expressed using skos:related.

Curriculum secundair onderwijs

Figure 2

Figure 2: curriculum secundair onderwijs: all collections, some example concepts and how they are connected.

• All concepts are member of the collection secundair onderwijs.
• Each concept is member of its corresponding collection.
• The hierarchy between secundair onderwijs concepts is expressed using skos:broader.
• The vakken and the trefwoorden are not hierarchical.
• The relation between vak1 and bouwsteen1 is expressed using skos:related.
• The relation between trefwoord1 and bouwsteen1 is expressed using skos:related.

Onderwijsstructuur

The onderwijsstructuur was modified between versions v1 and v2, because as of v2, the common onderwijsstructuur is used. We'll handle these versions separately.

All figures below are incomplete subsets of the entire dataset.

Onderwijsstructuur v1

• Onderwijsstruur concepts are all member of the collection onderwijsstructuur.
• The concepts are split up further into the following collections:
  • onderwijsniveau
  • onderwijssubniveau
  • jaar of graad
  • stroom of finaliteit
• The hierarchical relationship is expressed with skos:broader.

Onderwijsstructuur v1, gewoon onderwijs

Figure 3

Figures 3: Collections and some example concepts for onderwijsstructuur v1, gewoon onderwijs.

Note that:

• The tree under secundair onderwijs does not contain onderwijsubniveaus.

Onderwijsstructuur v1, buitengewoon onderwijs

Figure 4

Figures 4: Collections and some example concepts for onderwijsstructuur v1, buitengewoon onderwijs.

Note that:

• The tree is limited to the buitengewoon ... alternatives for lager onderwijs and secundair onderwijs; no deeper structure available.

Onderwijsstructuur v2

• Onderwijsstruur concepts are all member of the collection onderwijsstructuur.
• The concepts are split up further into the following collections:
  • onderwijsniveau
  • onderwijssubniveau
  • opleidingsvorm (new)
  • jaar (part 1 of replacement for jaar of graad)
  • graad (part 2 of replacement for jaar of graad)
  • stroom (part 1 of replacement for stroom of finaliteit)
  • finaliteit (part 2 of replacement for stroom of finaliteit)
• The hierarchical relationship is expressed with skos:broader.

Please note that all onderwijsstructuur URI's are different from these in v1..

Onderwijsstructuur v2, gewoon onderwijs

Figure 5

Figures 5: Collections and some example concepts for onderwijsstructuur v2, gewoon onderwijs.

Note that:

• The tree under secundair onderwijs does not contain onderwijsubniveaus.
• The tree does not contain opleidingsvormen.
• Concepts narrower than a concept in the jaar of graad collection in v1, are now narrower to concepts of the graad collection (and not the jaar collection as one could expect).

Onderwijsstructuur v2, buitengewoon onderwijs

Figure 6

Figures 6: Collections and some example concepts for onderwijsstructuur v2, buitengewoon onderwijs.

Note that:

• There is a separate concept buitengewoon basisonderwijs now.
• There is an additional concept buitengewoon kleuteronderwijs now.
• For buitengewoon secundair onderwijs, the deeper structure has opleidingsvormen.
• For buitengewoon secundair onderwijs, opleidingsvorm 4, there is a deeper structure containing graad concepts (as for gewoon secundair onderwijs, but without the deeper structure).

Onderwijsdoelen

• Onderwijsdoelen are all member of the collection onderwijsdoelen.

Onderwijsdoelen vs. curriculum concepts

• Onderwijsdoelen can be linked to curriculum concepts by means of skos:related.

Figure 7

Figure 7: Example of an onderwijsdoel and how it can be linked to concepts in the curriculum lager onderwijs.

• For lager onderwijs:
  • An onderwijsdoel is linked to a leergebied
  • An onderwijsdoel can be linked to a hierarchically lower subdomein
  • An onderwijsdoel can be linked to a hierarchically lower thema

Figure 8

Figure 8: Example of an onderwijsdoel and how it can be linked to concepts in the curriculum secundair onderwijs.

• For secundair onderwijs:
  • An onderwijsdoel is linked to a sleutelcompetentie
  • An onderwijsdoel can be linked to a hierarchically lower bouwsteen

Onderwijsdoelen vs. onderwijsstructuur concepts

Figure 9

Figure 9: Example link from an onderwijsdoel to a concept in the onderwijsstructuur hierarchy.

• Onderwijsdoelen can be linked to onderwijsstructuur concepts by means of skos:related.
• Some concepts in the onderwijsstructuur hierarchy are not linked to any onderwijsdoel (onderwijsstructuurconcept1, onderwijsstructuurconcept2)
• Some concepts in the onderwijsstructuur hierarchy are linked directly to an onderwijsdoel (onderwijsstructuurconcept3)
• Some concepts in the onderwijsstructuur hierarchy are linked indirectly to an onderwijsdoel via their broader(Transitive) parent concepts (onderwijsstructuurconcept4, onderwijsstructuurconcept5)
• The relation between an onderwijsdoel and a onderwijsstructuur concept is expressed with skos:related.

Linking concepts with other vocabularies (non-SKOS)

onderwijsstructuur to curriculum

Below we use following shorthands for some concepts:

(*) if <x> is a number, it indicates the level in the hierarchy (1 = highest level)

Onderwijsstructuur concepts can be linked directly to curriculum collections, by means of the ilearn:hasCurriculum relation:

• o ilearn:hasCurriculum c

• If an onderwijsstructuur concept is not linked directly to any curriculum collection, it can be linked indirectly, via a hierarchically higher onderwijsstructuur concept:

  • o3 skos:broaderTransitive o1
  • o1 ilearn:hasCurriculum c

Onderwijsstructuur concepts can be assigned to a specific typical age range (a litteral range, expressed in years):

• o ilearn:typicalAgeRange "16-17"

Image links

An additional dataset at http://ilearn.ilabt.imec.be/iconen links terms to icons. They are linked according to following structure:

• x foaf:logo y
• y schema:contentUrl z

Using the GraphQL-LD endpoint, one can look up the logos via following query:

{
id(_:ID) # The ID of, e.g., the sleutelcompetentie you want the logo from
prefLabel @single
logo {
  contentUrl
}