diff --git a/nepomuk/ontologies/kext.trig b/nepomuk/ontologies/kext.trig
index be5d041..b743638 100644
--- a/nepomuk/ontologies/kext.trig
+++ b/nepomuk/ontologies/kext.trig
@@ -94,6 +94,35 @@ kext: {
           rdfs:range xsd:string ;
           nrl:cardinality 1 ;
           nao:userVisible false .
+
+    kext:ResourceScoreCache
+          a rdfs:Class ;
+          rdfs:subClassOf rdfs:Resource ;
+          rdfs:label "Resource score cache" ;
+          rdfs:comment "For storing the automatically calculated score based on the usage statistics" ;
+          nao:userVisible false .
+
+    kext:targettedResource
+          a rdf:Property ;
+          rdfs:comment "Resource for which the score is calculated." ;
+          rdfs:domain kext:ResourceScoreCache ;
+          rdfs:label "resource" ;
+          rdfs:range rdfs:Resource .
+
+    kext:initiatingAgent
+          a rdf:Property ;
+          rdfs:comment "Relates the score to the agent initiating the events." ;
+          rdfs:domain kext:ResourceScoreCache ;
+          rdfs:label "involved agent" ;
+          rdfs:range nao:Agent .
+
+    kext:cachedScore
+          a rdf:Property ;
+          rdfs:subPropertyOf nao:score ;
+          rdfs:comment "The automatically calculated score" ;
+          rdfs:domain kext:ResourceScoreCache ;
+          rdfs:label "calculated score" ;
+          rdfs:range xsd:float .
 }
 
 <http://nepomuk.kde.org/ontologies/2010/11/29/kext/metadata> {