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OP-TED / ePO

The eProcurement Ontology provides the formal, semantic foundation for the creation and reuse of linked open data in the domain of public procurement in the EU.
European Union Public License 1.2
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Add identifiers for epo-cat:Item #380

Closed idolum closed 1 year ago

idolum commented 1 year ago

We discussed this in the course of adding catalogue concepts to the ePO 3.0.0, but it seems we lost it out of sight.

Use Case:

An order shall be placed based on a catalogue. For specifying the item unambiguously in the order, a identifier is used instead of a name. A name might be ambiguous. To this end, a unambiguous identifier has to be provided in a catalogue for the item.

In addition, items have more than one identifier:

Proposal:

Add associations to the epo-cat:Item:

epo-cat:Item ----- (epo:hasID/hasUUID) - 1 --> epo:Identifier
epo-cat:Item ----- (epo:hasBuyerIdentifier) - 1 --> epo:Identifier
epo-cat:Item ----- (epo:hasStandardizedIdentifier) - 0..1 --> epo:Identifier
epo-cat:Item ----- (epo:hasManufacturerIdentifier) - 0..1 --> epo:Identifier

An alternative, more flexible approach would be:

epo-cat:Item ----- (epo:hasID/hasUUID) - 1..n --> epo:Identifier
andreea-pasare commented 1 year ago

In the latest release version, ePO 3.0.1, epo-cat:Item does have multiple links to epo:Identifier but they were not visible in any of the diagrams of the catalogue module. In the diagram below are depicted the already existing links to epo:Identifier:

image

Are these enough or do we need to add more identifiers?

idolum commented 1 year ago

@andreea-pasare These are enough! Thank you, Andreaa! So, I remembered correctly that we discussed this. Will add this to our spec and discuss this with the working group. If we have further comments, we will come back to you. Issue can be closed then.