From e09d9e464dbfe617c7776e8de71620c365669244 Mon Sep 17 00:00:00 2001
From: Huanyu Li <huanyu.li@liu.se>
Date: Thu, 26 Feb 2026 10:25:20 +0100
Subject: [PATCH] update observation

---
 .../modules/observation/0.1/observation.ttl   | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/ontology/modules/observation/0.1/observation.ttl b/ontology/modules/observation/0.1/observation.ttl
index e70531a..4f9594a 100644
--- a/ontology/modules/observation/0.1/observation.ttl
+++ b/ontology/modules/observation/0.1/observation.ttl
@@ -91,6 +91,13 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                      rdfs:label "has observation value" .
 
 
+###  http://w3id.org/PLCO/ontology/observation#hasValueForObservableProperty
+:hasValueForObservableProperty rdf:type owl:ObjectProperty ;
+                               rdfs:domain :ObservableProperty ;
+                               rdfs:range :ObservationValue ;
+                               rdfs:label "has value for observable property" .
+
+
 ###  http://w3id.org/PLCO/ontology/observation#hasValueForObservationParameter
 :hasValueForObservationParameter rdf:type owl:ObjectProperty ;
                                  rdfs:domain :ObservationParameter ;
@@ -98,6 +105,13 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                                  rdfs:label "has value for observation parameter" .
 
 
+###  http://w3id.org/PLCO/ontology/observation#isMadeBySensor
+:isMadeBySensor rdf:type owl:ObjectProperty ;
+                rdfs:domain :Observation ;
+                rdfs:range :Sensor ;
+                rdfs:label "is made by sensor" .
+
+
 ###  http://w3id.org/PLCO/ontology/observation#isObservedBy
 :isObservedBy rdf:type owl:ObjectProperty ;
               owl:inverseOf :observesOnProperty ;
@@ -131,6 +145,16 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                  rdfs:label "has numeric value" .
 
 
+###  http://w3id.org/PLCO/ontology/observation#hasSimpleObservationResult
+:hasSimpleObservationResult rdf:type owl:DatatypeProperty ;
+                            rdfs:domain [ rdf:type owl:Class ;
+                                          owl:unionOf ( :ObservableProperty
+                                                        :ObservationParameter
+                                                      )
+                                        ] ;
+                            rdfs:label "has simple observation result" .
+
+
 ###  http://w3id.org/PLCO/ontology/observation#hasTextualValue
 :hasTextualValue rdf:type owl:DatatypeProperty ;
                  rdfs:domain :ObservationValue ;
@@ -179,6 +203,7 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
 
 ###  http://w3id.org/PLCO/ontology/observation#ObservationParameter
 :ObservationParameter rdf:type owl:Class ;
+                      rdfs:comment "Represents a property or a characteristic of a feature of interest under observation." ;
                       rdfs:label "Observation Parameter" .
 
 
@@ -187,6 +212,11 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                   rdfs:label "Observation Value" .
 
 
+###  http://w3id.org/PLCO/ontology/observation#Sensor
+:Sensor rdf:type owl:Class ;
+        rdfs:label "Sensor" .
+
+
 ###  http://w3id.org/PLCO/ontology/product#StateProperty
 <http://w3id.org/PLCO/ontology/product#StateProperty> rdf:type owl:Class .