[1530] Add RequirementUsage's ReqId to the Details View Core tab

CHANGELOG.adoc

@@ -82,6 +82,7 @@ Consumers may override this by providing an implementation of `org.eclipse.syson
 - https://github.com/eclipse-syson/syson/issues/1502[#1502] [libraries] Update standard libraries to SysMLv2 2025-07 specification.
 - https://github.com/eclipse-syson/syson/issues/1432[#1432] [metamodel] Add implicit `Subclassification` or `Subsetting` when using semantic `MetadataUsage`.
 - https://github.com/eclipse-syson/syson/issues/1355[#1355] [tests] Add coding rules tests on all modules.
+- https://github.com/eclipse-syson/syson/issues/1530[#1530] [details] Move `RequirementUsage`'s _ReqId_ property from the _Advanced_ tab to the _Core_ tab of the _Details View_.
 
 === New features
 

backend/application/syson-application-configuration/src/main/java/org/eclipse/syson/application/services/CoreFeaturesSwitch.java

@@ -37,6 +37,7 @@
 import org.eclipse.syson.sysml.Redefinition;
 import org.eclipse.syson.sysml.ReferenceSubsetting;
 import org.eclipse.syson.sysml.RequirementConstraintMembership;
+import org.eclipse.syson.sysml.RequirementUsage;
 import org.eclipse.syson.sysml.Specialization;
 import org.eclipse.syson.sysml.StateDefinition;
 import org.eclipse.syson.sysml.StateSubactionMembership;
@@ -230,6 +231,14 @@ public List<EStructuralFeature> caseRequirementConstraintMembership(RequirementC
         return features;
     }
 
+    @Override
+    public List<EStructuralFeature> caseRequirementUsage(RequirementUsage object) {
+        var features = new ArrayList<EStructuralFeature>();
+        features.addAll(this.caseFeature(object));
+        features.add(SysmlPackage.eINSTANCE.getRequirementUsage_ReqId());
+        return features;
+    }
+
     @Override
     public List<EStructuralFeature> caseSpecialization(Specialization object) {
         var features = new ArrayList<EStructuralFeature>();

backend/application/syson-application-configuration/src/test/java/org/eclipse/syson/application/services/DetailsViewServiceTest.java

@@ -75,6 +75,16 @@ public void getCoreFeaturesOfMembership() {
                 SysmlPackage.eINSTANCE.getMembership_MemberElement());
     }
 
+    @Test
+    public void getCoreFeaturesOfRequirementUsage() {
+        List<EStructuralFeature> coreStructuralFeatures = this.detailsViewService.getCoreFeatures(SysmlFactory.eINSTANCE.createRequirementUsage());
+        assertThat(coreStructuralFeatures).containsOnly(SysmlPackage.eINSTANCE.getElement_DeclaredName(),
+                SysmlPackage.eINSTANCE.getElement_QualifiedName(),
+                SysmlPackage.eINSTANCE.getElement_DeclaredShortName(),
+                SysmlPackage.eINSTANCE.getFeature_Direction(),
+                SysmlPackage.eINSTANCE.getRequirementUsage_ReqId());
+    }
+
     @Test
     public void isReadOnlyElementInImportedLibrary() {
         Resource resource = new JSONResourceFactory().createResourceFromPath("testResource");

doc/content/modules/user-manual/pages/release-notes/2025.10.0.adoc

@@ -99,7 +99,7 @@ metadata def Function :> SemanticMetadata {
 #Function action a0; // a0 subset functions
 #Function action def A0; // A0 subclassify Functions
 ```
-- Add coding rules tests on all modules.
+- Move `RequirementUsage`'s _ReqId_ property from the _Advanced_ tab to the _Core_ tab of the _Details View_.
 
 == Dependency update