diff --git a/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/IdentifierFacetImpl.java b/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/IdentifierFacetImpl.java
index 2cc20c8..67f852d 100644
--- a/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/IdentifierFacetImpl.java
+++ b/src/main/java/org/gcube/resourcemanagement/model/impl/entities/facets/IdentifierFacetImpl.java
@@ -3,8 +3,12 @@
  */
 package org.gcube.resourcemanagement.model.impl.entities.facets;
 
+import java.util.Map;
+
 import org.gcube.com.fasterxml.jackson.annotation.JsonTypeName;
 import org.gcube.informationsystem.model.impl.entities.FacetImpl;
+import org.gcube.informationsystem.types.impl.TypeImpl;
+import org.gcube.informationsystem.utils.TypeVersion;
 import org.gcube.resourcemanagement.model.reference.entities.facets.IdentifierFacet;
 
 /**
@@ -18,6 +22,13 @@ public class IdentifierFacetImpl extends FacetImpl implements IdentifierFacet {
 	 */
 	private static final long serialVersionUID = 5711870008624673728L;
 	
+	public static final Map<TypeVersion, String> CHANGELOG;
+	
+	static {
+		CHANGELOG = TypeImpl.DEFAULT_CHANGELOG_MAP;
+		CHANGELOG.put(new TypeVersion(IdentifierFacet.VERSION), "Added STRING in IdentificationType");
+	}
+	
 	protected String value;
 	protected IdentificationType type;
 	protected boolean persistent;
diff --git a/src/main/java/org/gcube/resourcemanagement/model/reference/entities/facets/IdentifierFacet.java b/src/main/java/org/gcube/resourcemanagement/model/reference/entities/facets/IdentifierFacet.java
index 0f3d3ab..24b7023 100644
--- a/src/main/java/org/gcube/resourcemanagement/model/reference/entities/facets/IdentifierFacet.java
+++ b/src/main/java/org/gcube/resourcemanagement/model/reference/entities/facets/IdentifierFacet.java
@@ -3,9 +3,12 @@
  */
 package org.gcube.resourcemanagement.model.reference.entities.facets;
 
+import java.util.Map;
+
 import org.gcube.com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import org.gcube.informationsystem.model.reference.entities.Facet;
 import org.gcube.informationsystem.types.annotations.ISProperty;
+import org.gcube.informationsystem.utils.TypeVersion;
 import org.gcube.resourcemanagement.model.impl.entities.facets.IdentifierFacetImpl;
 
 /**
@@ -28,6 +31,7 @@ public interface IdentifierFacet extends Facet {
 	public static final String DESCRIPTION = "This facet collects "
 			+ "information on Identifiers that can be attached to a resource. ";
 	public static final String VERSION = "1.0.1";
+	public static final Map<TypeVersion, String> CHANGELOG = IdentifierFacetImpl.CHANGELOG;
 	
 	public static final String VALUE_PROPERTY = "value";
 	public static final String TYPE_PROPERTY = "type";
@@ -50,4 +54,5 @@ public interface IdentifierFacet extends Facet {
 	public boolean isPersistent();
 	
 	public void setPersistent(boolean persistent);
+	
 }
diff --git a/src/test/java/org/gcube/resourcemanagement/model/reference/entities/facets/Serializer.java b/src/test/java/org/gcube/resourcemanagement/model/reference/entities/facets/Serializer.java
index 0e4e174..66db03a 100644
--- a/src/test/java/org/gcube/resourcemanagement/model/reference/entities/facets/Serializer.java
+++ b/src/test/java/org/gcube/resourcemanagement/model/reference/entities/facets/Serializer.java
@@ -15,7 +15,9 @@ 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.types.TypeMapper;
+import org.gcube.informationsystem.types.reference.entities.FacetType;
 import org.gcube.informationsystem.utils.ElementMapper;
+import org.gcube.informationsystem.utils.TypeVersion;
 import org.gcube.resourcemanagement.model.impl.entities.facets.CPUFacetImpl;
 import org.gcube.resourcemanagement.model.impl.entities.facets.ContactFacetImpl;
 import org.gcube.resourcemanagement.model.impl.entities.resources.HostingNodeImpl;
@@ -163,4 +165,14 @@ public class Serializer {
 		logger.trace("Deserialized Context : {} ", c);
 	}
 	
+	
+	@Test
+	public void testTypeSerialization() throws Exception {
+		String serialized = TypeMapper.serializeType(IdentifierFacet.class);
+		logger.info(serialized);
+		FacetType propertyType = (FacetType) TypeMapper.deserializeTypeDefinition(serialized);
+		TypeVersion typeVersion = propertyType.getVersion();
+		logger.debug("Version {}", typeVersion.toString());
+		logger.info(ElementMapper.marshal(propertyType));
+	}
 }