diff --git a/src/main/java/org/gcube/informationsystem/model/impl/entities/ResourceImpl.java b/src/main/java/org/gcube/informationsystem/model/impl/entities/ResourceImpl.java
index daf1cf0..14567cf 100644
--- a/src/main/java/org/gcube/informationsystem/model/impl/entities/ResourceImpl.java
+++ b/src/main/java/org/gcube/informationsystem/model/impl/entities/ResourceImpl.java
@@ -11,7 +11,6 @@ import org.gcube.informationsystem.model.impl.relations.ConsistsOfImpl;
 import org.gcube.informationsystem.model.reference.entities.Facet;
 import org.gcube.informationsystem.model.reference.entities.Resource;
 import org.gcube.informationsystem.model.reference.relations.ConsistsOf;
-import org.gcube.informationsystem.model.reference.relations.IsIdentifiedBy;
 import org.gcube.informationsystem.model.reference.relations.IsRelatedTo;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -199,17 +198,6 @@ public abstract class ResourceImpl extends EntityImpl implements Resource {
 		*/
 	}
 	
-	@Override
-	public List<? extends Facet> getIdentificationFacets() {
-		List<Facet> identificationFacets = new ArrayList<>();
-		for(ConsistsOf<? extends Resource, ? extends Facet> consistsOfInstance : consistsOfList){
-			if (IsIdentifiedBy.class.isAssignableFrom(consistsOfInstance.getClass())) {
-				identificationFacets.add(consistsOfInstance.getTarget());
-			}
-		}
-		return identificationFacets;
-	}
-
 	@Override
 	public List<ConsistsOf<? extends Resource, ? extends Facet>> getConsistsOf() {
 		return consistsOfList;
diff --git a/src/main/java/org/gcube/informationsystem/model/impl/relations/IsIdentifiedByImpl.java b/src/main/java/org/gcube/informationsystem/model/impl/relations/IsIdentifiedByImpl.java
deleted file mode 100644
index 44f0d29..0000000
--- a/src/main/java/org/gcube/informationsystem/model/impl/relations/IsIdentifiedByImpl.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/**
- * 
- */
-package org.gcube.informationsystem.model.impl.relations;
-
-import org.gcube.informationsystem.model.reference.entities.Facet;
-import org.gcube.informationsystem.model.reference.entities.Resource;
-import org.gcube.informationsystem.model.reference.properties.PropagationConstraint;
-import org.gcube.informationsystem.model.reference.relations.IsIdentifiedBy;
-
-import com.fasterxml.jackson.annotation.JsonTypeName;
-
-/**
- * @author Luca Frosini (ISTI - CNR)
- */
-@JsonTypeName(value=IsIdentifiedBy.NAME)
-public class IsIdentifiedByImpl<S extends Resource, T extends Facet> extends
-	ConsistsOfImpl<S, T> implements IsIdentifiedBy<S, T> {
-
-	/**
-	 * Generated Serial Version UID
-	 */
-	private static final long serialVersionUID = 8043666054054911145L;
-
-	protected IsIdentifiedByImpl(){
-		super();
-	}
-	
-	public IsIdentifiedByImpl(S source, T target,
-			PropagationConstraint propagationConstraint) {
-		super(source, target, propagationConstraint);
-	}
-	
-}
diff --git a/src/main/java/org/gcube/informationsystem/model/reference/entities/Resource.java b/src/main/java/org/gcube/informationsystem/model/reference/entities/Resource.java
index b4f8907..bc59181 100644
--- a/src/main/java/org/gcube/informationsystem/model/reference/entities/Resource.java
+++ b/src/main/java/org/gcube/informationsystem/model/reference/entities/Resource.java
@@ -27,9 +27,6 @@ public interface Resource extends Entity {
 	public static final String CONSISTS_OF_PROPERTY = "consistsOf";
 	public static final String IS_RELATED_TO_PROPERTY = "isRelatedTo";
 	
-	@JsonIgnore
-	public List<? extends Facet> getIdentificationFacets();
-	
 	// @JsonManagedReference
 	public List<ConsistsOf<? extends Resource, ? extends Facet>> getConsistsOf();
 	
diff --git a/src/main/java/org/gcube/informationsystem/model/reference/relations/IsIdentifiedBy.java b/src/main/java/org/gcube/informationsystem/model/reference/relations/IsIdentifiedBy.java
deleted file mode 100644
index 0f84458..0000000
--- a/src/main/java/org/gcube/informationsystem/model/reference/relations/IsIdentifiedBy.java
+++ /dev/null
@@ -1,22 +0,0 @@
-/**
- * 
- */
-package org.gcube.informationsystem.model.reference.relations;
-
-import org.gcube.informationsystem.model.impl.relations.IsIdentifiedByImpl;
-import org.gcube.informationsystem.model.reference.entities.Facet;
-import org.gcube.informationsystem.model.reference.entities.Resource;
-
-import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
-
-/**
- * @author Luca Frosini (ISTI - CNR)
- * https://wiki.gcube-system.org/gcube/Facet_Based_Resource_Model#isIdentifiedBy
- */
-@JsonDeserialize(as=IsIdentifiedByImpl.class)
-public interface IsIdentifiedBy<S extends Resource, T extends Facet>
-		extends ConsistsOf<S, T> {
-	
-	public static final String NAME = "IsIdentifiedBy"; //IsIdentifiedBy.class.getSimpleName();
-	
-}