sosa:Result
The sosa:Result class represents the outcome of a sosa:Observation, sosa:Actuation, or sosa:Sampling. In SDL, results typically capture measured values, such as pH, temperature, or CO₂ concentration, often modeled as quantitative values or references to data files.
Definition
URI: http://www.w3.org/ns/sosa/Result
A sosa:Result is the outcome of an observation, actuation, or sampling, which may be a value, media file, or material entity.
Usage in SDL
In SDL, sosa:Result is used to:
- Store the value or representation of a scientific measurement
- Link observations to meaningful outputs
- Represent both scalar values (e.g., numbers, text) and structured results (e.g., files, JSON, quantity values)
Properties
| Property | Description | Optional |
|---|---|---|
| dcterms:identifier | Identifier for the result | Yes |
| dcterms:title | Human-readable name or label | Yes |
| dcterms:description | Description of the result | Yes |
| rdf:value | The actual value (number, string, etc.) | Yes |
| qudt:numericValue | Quantity value if using QUDT format | Yes |
| qudt:unit | Associated unit of measurement | Yes |
| prov:wasGeneratedBy | Sampling or observation activity that generated the result | Yes |
| dcat:downloadURL | If result is a file, the link to access it | Yes |
Composition
Results can be literal values, quantity values, or links to structured files:
ex:obs1 a sosa:Observation ;
sosa:hasResult ex:result1 .
ex:result1 a sosa:Result ;
rdf:value "7.1"^^xsd:decimal ;
qudt:unit unit:PH ;
dcterms:description "Measured pH of the soil solution" .
Or:
ex:resultFile a sosa:Result ;
dcat:downloadURL <https://example.org/data/sample42.csv> ;
dcterms:description "Raw data export from gas analyzer" .
Example — Quantity Value
ex:co2Result a sosa:Result ;
qudt:numericValue "396.2"^^xsd:float ;
qudt:unit unit:PPM ;
dcterms:title "CO₂ Reading" .
Related Classes
- sosa:Observation — links to result via sosa:hasResult
- qudt:QuantityValue — used to express quantitative results
- prov:Activity — provenance of result generation
- dcat:Distribution — if the result is a downloadable file
📘 See Also
sosa:Result anchors the measurement data in SDL — enabling interoperability across values, files, and quantitative models.