diff --git a/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/SchemaFacetImpl.java b/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/SchemaFacetImpl.java
index 5a139e4..37d76c9 100644
--- a/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/SchemaFacetImpl.java
+++ b/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/SchemaFacetImpl.java
@@ -23,49 +23,31 @@ public class SchemaFacetImpl extends FacetImpl implements SchemaFacet {
 	protected String description;
 	protected ValueSchema schema;
 	
-	/**
-	 * @return the name
-	 */
 	@Override
 	public String getName() {
 		return name;
 	}
 	
-	/**
-	 * @param name the name to set
-	 */
 	@Override
 	public void setName(String name) {
 		this.name = name;
 	}
 	
-	/**
-	 * @return the description
-	 */
 	@Override
 	public String getDescription() {
 		return description;
 	}
 	
-	/**
-	 * @param description the description to set
-	 */
 	@Override
 	public void setDescription(String description) {
 		this.description = description;
 	}
 	
-	/**
-	 * @return the schemaURL
-	 */
 	@Override
 	public ValueSchema getSchema() {
 		return schema;
 	}
 	
-	/**
-	 * @param schemaURL the schemaURL to set
-	 */
 	@Override
 	public void setSchema(ValueSchema schema) {
 		this.schema = schema;
diff --git a/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Plugin.java b/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Plugin.java
index 3d98f16..5636735 100644
--- a/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Plugin.java
+++ b/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Plugin.java
@@ -10,6 +10,7 @@ import org.gcube.informationsystem.types.reference.Change;
 import org.gcube.informationsystem.types.reference.TypeMetadata;
 import org.gcube.informationsystem.utils.TypeVersion;
 import org.gcube.resourcemanagement.model.impl.entities.resources.PluginImpl;
+import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.DependsOn;
 import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.IsPluginOf;
 
 
diff --git a/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Service.java b/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Service.java
index fcb20ee..9902301 100644
--- a/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Service.java
+++ b/src/main/java/org/gcube/resourcemanagement/model/reference/entities/resources/Service.java
@@ -15,6 +15,7 @@ import org.gcube.resourcemanagement.model.impl.entities.resources.ServiceImpl;
 import org.gcube.resourcemanagement.model.reference.entities.facets.CapabilityFacet;
 import org.gcube.resourcemanagement.model.reference.entities.facets.DescriptiveMetadataFacet;
 import org.gcube.resourcemanagement.model.reference.entities.facets.SubjectFacet;
+import org.gcube.resourcemanagement.model.reference.relations.consistsof.IsIdentifiedBy;
 import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.Activates;
 import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.CallsFor;
 import org.gcube.resourcemanagement.model.reference.relations.isrelatedto.Enables;