diff --git a/.project b/.project
index db224a5..01b4101 100644
--- a/.project
+++ b/.project
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <projectDescription>
-	<name>InformationCollector_branched</name>
+	<name>InformationCollector</name>
 	<comment></comment>
 	<projects>
 	</projects>
diff --git a/CHANGELOG b/CHANGELOG
index ecd8d60..6660329 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,9 @@
+v. 2.1.0 (30-10-2009)
+	* GetProfileLastModificationTimeMs and GetResourceLastModificationTimeMs operations
 
+v. 2.1.0 (15-10-2009)
+	* GetProfile and GetResource operations
+	
 v. 2.0.0 (30-08-2009)
 	* test-suite
 	* Data e Query specialized managers
diff --git a/etc/profile.xml b/etc/profile.xml
index 1c4128e..2173788 100644
--- a/etc/profile.xml
+++ b/etc/profile.xml
@@ -20,7 +20,7 @@
 					sink by collecting and exposing the information published by the
 					registered gCube services</Description>
 				<Name>IS-Collector-service</Name>
-				<Version>2.1.0</Version>
+				<Version>2.2.0</Version>
 				<Dependencies>
 					<Dependency>
 						<Service>
@@ -29,7 +29,7 @@
 							<Version>1.0.0</Version>
 						</Service>
 						<Package>IS-Collector-stubs</Package>
-						<Version>[2.1.0]</Version>
+						<Version>[2.2.0]</Version>
 						<Scope level="GHN" />
 						<Optional>false</Optional>
 					</Dependency>					
@@ -76,7 +76,7 @@
 			<Software deployable="true">
 				<Description>InformationCollector Stubs</Description>
 				<Name>IS-Collector-stubs</Name>
-				<Version>2.1.0</Version>
+				<Version>2.2.0</Version>
 				<MultiVersion value="true" />
 				<Mandatory level="VO" />
 				<Shareable level="VO" />
@@ -88,7 +88,7 @@
 			<Software>
 				<Description>Test-suite for IS-Collector: provide sample usages of interaction with a IS-Collector instance</Description>
 				<Name>IS-Collector-test-suite</Name>
-				<Version>2.1.0</Version>
+				<Version>2.2.0</Version>
 				<MultiVersion value="true"/>				
 				<Shareable level="VO"/>				
 				<Type>application</Type>
diff --git a/schema/XMLCollectionAccess.wsdl b/schema/XMLCollectionAccess.wsdl
index 2fcaeef..159c7df 100755
--- a/schema/XMLCollectionAccess.wsdl
+++ b/schema/XMLCollectionAccess.wsdl
@@ -49,6 +49,10 @@
 	   
 	   <xsd:element name="getResourceResponse" type="xsd:string"/>
 	   
+	   <xsd:element name="getResourceLastModificationTimeMsResponse" type="xsd:long"/>
+	   
+	   <xsd:element name="getProfileLastModificationTimeMsResponse" type="xsd:long"/>
+	   
 	   <xsd:element name="deleteProfileParams">	   	
 	   		<xsd:complexType >
 		      <xsd:sequence>
@@ -58,6 +62,23 @@
     		</xsd:complexType>
 		</xsd:element>
   		
+  		<xsd:element name="GetProfileLastModificationTimeMsCriteria">	   	
+	   		<xsd:complexType >
+		      <xsd:sequence>
+        		<xsd:element name="ID" type="xsd:string"/>        
+        		<xsd:element name="profileType" type="xsd:string"/>        	
+			 </xsd:sequence>
+    		</xsd:complexType>
+		</xsd:element>
+		
+		<xsd:element name="GetResourceLastModificationTimeMsCriteria">	   	
+	   		<xsd:complexType >
+		      <xsd:sequence>
+        		<xsd:element name="ID" type="xsd:string"/>        	
+			 </xsd:sequence>
+    		</xsd:complexType>
+		</xsd:element>
+  		
   		<xsd:element name="GetProfileCriteria">	   	
 	   		<xsd:complexType >
 		      <xsd:sequence>
@@ -115,6 +136,14 @@
         <part name="parameters" element="tns:getResourceResponse"/>
   </wsdl:message> 
   
+  <wsdl:message name="GetResourceLastModificationTimeMsInputMessage">
+        <part name="parameters" element="tns:GetResourceLastModificationTimeMsCriteria"/>          
+  </wsdl:message>
+  
+  <wsdl:message name="GetResourceLastModificationTimeMsOutputMessage">
+        <part name="parameters" element="tns:getResourceLastModificationTimeMsResponse"/>
+  </wsdl:message>
+  
   <wsdl:message name="DeleteProfileInputMessage">
         <part name="parameters" element="tns:deleteProfileParams"/>          
   </wsdl:message>
@@ -131,6 +160,13 @@
         <part name="parameters" element="tns:getProfileResponse"/>
   </wsdl:message> 
     
+    <wsdl:message name="GetProfileLastModificationTimeMsInputMessage">
+        <part name="parameters" element="tns:GetProfileLastModificationTimeMsCriteria"/>          
+  </wsdl:message>
+  
+  <wsdl:message name="GetProfileLastModificationTimeMsOutputMessage">
+        <part name="parameters" element="tns:getProfileLastModificationTimeMsResponse"/>
+  </wsdl:message> 
    <wsdl:message name="VoidMessage">
     	<part name="parameters" element="tns:voidElement"/>
   </wsdl:message>
@@ -157,6 +193,16 @@
             <wsdl:output message="tns:GetResourceOutputMessage"/>
             <wsdl:fault name="fault" message="tns:DocumentNotFoundFaultTypeMessage"/>
      </wsdl:operation>
+     <wsdl:operation name="GetProfileLastModificationTimeMs">
+            <wsdl:input message="tns:GetProfileLastModificationTimeMsInputMessage"/>            
+            <wsdl:output message="tns:GetProfileLastModificationTimeMsOutputMessage"/>
+            <wsdl:fault name="fault" message="tns:DocumentNotFoundFaultTypeMessage"/>
+     </wsdl:operation>
+     <wsdl:operation name="GetResourceLastModificationTimeMs">
+            <wsdl:input message="tns:GetResourceLastModificationTimeMsInputMessage"/>            
+            <wsdl:output message="tns:GetResourceLastModificationTimeMsOutputMessage"/>
+            <wsdl:fault name="fault" message="tns:DocumentNotFoundFaultTypeMessage"/>
+     </wsdl:operation>
      <wsdl:operation name="DeleteResource">
             <wsdl:input message="tns:DeleteResourceInputMessage"/>            
             <wsdl:output message="tns:DeleteResourceOutputMessage"/>
diff --git a/src/org/gcube/informationsystem/collector/impl/porttypes/XMLCollectionAccess.java b/src/org/gcube/informationsystem/collector/impl/porttypes/XMLCollectionAccess.java
index ffeba99..7a20dbc 100755
--- a/src/org/gcube/informationsystem/collector/impl/porttypes/XMLCollectionAccess.java
+++ b/src/org/gcube/informationsystem/collector/impl/porttypes/XMLCollectionAccess.java
@@ -15,7 +15,9 @@ import org.gcube.informationsystem.collector.impl.xmlstorage.exist.Sweeper;
 import org.gcube.informationsystem.collector.stubs.DeleteProfileParams;
 import org.gcube.informationsystem.collector.stubs.DocumentNotFoundFaultType;
 import org.gcube.informationsystem.collector.stubs.GetProfileCriteria;
+import org.gcube.informationsystem.collector.stubs.GetProfileLastModificationTimeMsCriteria;
 import org.gcube.informationsystem.collector.stubs.GetResourceCriteria;
+import org.gcube.informationsystem.collector.stubs.GetResourceLastModificationTimeMsCriteria;
 
 import org.globus.wsrf.utils.FaultHelper;
 
@@ -131,8 +133,7 @@ public class XMLCollectionAccess extends GCUBEPortType {
     /**
      * Deletes the entire set of registered RPs from the storage
      * 
-     * @throws BaseFaultType
-     *             if an error occurs when deleting the resources
+     * @throws BaseFaultType  if an error occurs when deleting the resources
      */
     public void deleteAllRPs() throws BaseFaultType {
 	try {
@@ -149,10 +150,15 @@ public class XMLCollectionAccess extends GCUBEPortType {
 	}
     }        
 
+    /**
+     * Retrieves the given Resource
+     * @param criteria the Resource ID
+     * @return the XML serialization of the Resource
+     * @throws DocumentNotFoundFaultType if the Resource does not exist
+     */
     public String getResource(GetResourceCriteria criteria) throws DocumentNotFoundFaultType {
 	try {	    
-	    AggregatorPersistentResource aresource = State.getDataManager().retrievePropertyResourceFromID(criteria.getID());
-	    logger.debug("Returning resource:" + aresource.getData());
+	    AggregatorPersistentResource aresource = State.getDataManager().retrievePropertyResourceFromID(criteria.getID());	   
 	    return aresource.getData();
 	} catch (Exception e) {
 	    logger.warn("Unable to find Resource with ID=" + criteria.getID(), e);	    
@@ -161,10 +167,15 @@ public class XMLCollectionAccess extends GCUBEPortType {
 	
     }
     
+    /**
+     * Retrieves the given Profile
+     * @param criteria the Profile ID and Type
+     * @return the XML serialization of the Profile
+     * @throws DocumentNotFoundFaultType if the Profile does not exist
+     */
     public String getProfile(GetProfileCriteria criteria) throws DocumentNotFoundFaultType {
 	try {
-	    AggregatorPersistentResource aresource = State.getDataManager().retrieveProfile(criteria.getID(), criteria.getProfileType());
-	    logger.debug("Returning profile:" + aresource.getData());
+	    AggregatorPersistentResource aresource = State.getDataManager().retrieveProfile(criteria.getID(), criteria.getProfileType());	    
 	    return aresource.getData();
 	} catch (Exception e) {
 	    logger.warn("Unable to find Profile with ID=" + criteria.getID(), e);
@@ -172,6 +183,39 @@ public class XMLCollectionAccess extends GCUBEPortType {
 	}
     }
     
+    /**
+     * Gets the last modification time in milliseconds of the given Profile
+     * @param criteria the Profile ID and Type
+     * @return the last update time in milliseconds
+     * @throws DocumentNotFoundFaultType if the Profile does not exist
+     */
+    public long getProfileLastModificationTimeMs(GetProfileLastModificationTimeMsCriteria criteria) throws DocumentNotFoundFaultType {
+	try {
+	    AggregatorPersistentResource aresource = State.getDataManager().retrieveProfile(criteria.getID(), criteria.getProfileType());	
+	    return aresource.getLastUpdateTimeinMills();
+	} catch (Exception e) {
+	    logger.warn("Unable to find Profile with ID=" + criteria.getID(), e);
+	    throw new DocumentNotFoundFaultType();
+	}
+    }
+
+    /**
+     * Gets the last modification time in milliseconds of the given Resource
+     * @param criteria the Resource ID
+     * @return the last update time in milliseconds
+     * @throws DocumentNotFoundFaultType if the Resource does not exist
+     */
+    public long getResourceLastModificationTimeMs(GetResourceLastModificationTimeMsCriteria criteria) throws DocumentNotFoundFaultType {	
+	try {	    
+	    AggregatorPersistentResource aresource = State.getDataManager().retrievePropertyResourceFromID(criteria.getID());	    
+	    return aresource.getLastUpdateTimeinMills();
+	} catch (Exception e) {
+	    logger.warn("Unable to find Resource with ID=" + criteria.getID(), e);	    
+	    throw new DocumentNotFoundFaultType();
+	}
+	
+    }
+
     /** {@inheritDoc} */
     @Override
     protected GCUBEServiceContext getServiceContext() {
diff --git a/test-suite/samples/ServiceMap_CNRPrivate.xml b/test-suite/samples/ServiceMap_CNRPrivate.xml
index 97f7047..59f63eb 100644
--- a/test-suite/samples/ServiceMap_CNRPrivate.xml
+++ b/test-suite/samples/ServiceMap_CNRPrivate.xml
@@ -1,5 +1,7 @@
 <ServiceMap>    
         <Service name ="ISICAllQueryPT" endpoint ="http://node10.d.d4science.research-infrastructures.eu:8080/wsrf/services/gcube/informationsystem/collector/XQueryAccess"/>
         <Service name ="ISICAllRegistrationPT" endpoint ="http://node10.d.d4science.research-infrastructures.eu:8080/wsrf/services/gcube/informationsystem/collector/Sink"/>
+        <Service name ="ISICAllCollectionPT" endpoint ="http://node10.d.d4science.research-infrastructures.eu:8080/wsrf/services/gcube/informationsystem/collector/XMLCollectionAccess"/>
+        <Service name ="ISICAllStoragePT" endpoint ="http://node10.d.d4science.research-infrastructures.eu:8080/wsrf/services/gcube/informationsystem/collector/XMLStorageAccess"/>
       <!--   <Service name ="ISRegistry" endpoint="http://node6.d.d4science.research-infrastructures.eu:8080/wsrf/services/gcube/informationsystem/registry/RegistryFactory" />  -->                                                                                     
 </ServiceMap>