A Thing Description Dataset

Set of Thing Description documents and OWL axioms to illustrate semantic interoperability among WoT 'things'.

Thing Description Documents

Source: W3C WoT implementers report (May 2019).

Dataset:

Example queries:

list all Things

                
PREFIX td: <https://www.w3.org/2019/wot/td#>

SELECT DISTINCT ?thing WHERE {
    { ?thing td:hasPropertyAffordance ?aff }
    UNION
    { ?thing td:hasActionAffordance ?aff }
    UNION
    { ?thing td:hasEventAffordance ?aff }
} ORDER BY ?thing

list all Things and their affordances

                
PREFIX td: <https://www.w3.org/2019/wot/td#>

SELECT ?thing ?type ?name WHERE {
    { ?thing td:hasPropertyAffordance ?aff . bind ("property" as ?type) }
    UNION
    { ?thing td:hasActionAffordance ?aff . bind ("action" as ?type) }
    UNION
    { ?thing td:hasEventAffordance ?aff . bind ("event" as ?type) }
    ?aff td:name ?name
} ORDER BY ?thing

list all Things with their semantic tags

                
PREFIX td: <https://www.w3.org/2019/wot/td#>

SELECT ?thing ?type ?name WHERE {
    { ?uri1 td:hasPropertyAffordance ?uri2 . bind ("property" as ?type) }
    UNION
    { ?uri1 td:hasActionAffordance ?uri2 . bind ("action" as ?type) }
    UNION
    { ?uri1 td:hasEventAffordance ?uri2 . bind ("event" as ?type) }

    optional {
        ?uri1 a ?class1
        bind (strafter(str(?class1), "#") as ?thing)
    }

    optional {
        ?uri2 a ?class2
        bind (strafter(str(?class2), "#") as ?name)
    }
} ORDER BY ?uri1

This document is supplementary material to the paper "On Modeling the Physical World as a Collection of Things: the W3C Thing Description Ontology", published at ESWC 2020.