diff --git a/src/main/java/org/gcube/informationsystem/model/annotations/ISPropertyRef.java b/src/main/java/org/gcube/informationsystem/model/annotations/Method.java
similarity index 50%
rename from src/main/java/org/gcube/informationsystem/model/annotations/ISPropertyRef.java
rename to src/main/java/org/gcube/informationsystem/model/annotations/Method.java
index 32bc779..2e311f6 100644
--- a/src/main/java/org/gcube/informationsystem/model/annotations/ISPropertyRef.java
+++ b/src/main/java/org/gcube/informationsystem/model/annotations/Method.java
@@ -5,16 +5,9 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
+
 @Target(ElementType.METHOD)
 @Retention(RetentionPolicy.RUNTIME)
-public @interface ISPropertyRef {
-	
-	String name() default "";
-	String description() default "";
-	boolean mandatory() default false;
-	boolean readonly() default false;
-	boolean nullable() default true;
-	int min() default -1;
-	int max() default -1;
-	String regexpr() default "";
+public @interface Method {
+
 }
diff --git a/src/main/java/org/gcube/informationsystem/model/embedded/AccessPolicy.java b/src/main/java/org/gcube/informationsystem/model/embedded/AccessPolicy.java
index 8e58290..11513bc 100644
--- a/src/main/java/org/gcube/informationsystem/model/embedded/AccessPolicy.java
+++ b/src/main/java/org/gcube/informationsystem/model/embedded/AccessPolicy.java
@@ -1,6 +1,6 @@
 package org.gcube.informationsystem.model.embedded;
 
-import org.gcube.informationsystem.model.annotations.ISPropertyRef;
+
 
 
 /**
@@ -8,12 +8,10 @@ import org.gcube.informationsystem.model.annotations.ISPropertyRef;
  */
 public interface AccessPolicy extends Embedded {
 
-	@ISPropertyRef
 	public ValueSchema getPolicy();
 
 	public void setPolicy(ValueSchema policy);
 	
-	@ISPropertyRef
 	public String getNote();
 	
 	public void setNote(String note);
diff --git a/src/main/java/org/gcube/informationsystem/model/embedded/Header.java b/src/main/java/org/gcube/informationsystem/model/embedded/Header.java
index 9343236..10ef6c8 100644
--- a/src/main/java/org/gcube/informationsystem/model/embedded/Header.java
+++ b/src/main/java/org/gcube/informationsystem/model/embedded/Header.java
@@ -3,7 +3,6 @@
  */
 package org.gcube.informationsystem.model.embedded;
 
-import org.gcube.informationsystem.model.annotations.ISProperty;
 
 
 /**
@@ -12,16 +11,12 @@ import org.gcube.informationsystem.model.annotations.ISProperty;
  */
 public interface Header extends Embedded {
 
-	@ISProperty
 	public String getID();
 	
-	@ISProperty
 	public String getCreator();
 	
-	@ISProperty
 	public Long getCreationTime();
 	
-	@ISProperty
 	public Long getLastUpdateTime();
 	
 	
diff --git a/src/main/java/org/gcube/informationsystem/model/embedded/RelationProperty.java b/src/main/java/org/gcube/informationsystem/model/embedded/RelationProperty.java
index 2e58498..9b5d19a 100644
--- a/src/main/java/org/gcube/informationsystem/model/embedded/RelationProperty.java
+++ b/src/main/java/org/gcube/informationsystem/model/embedded/RelationProperty.java
@@ -1,16 +1,7 @@
-/**
- * 
- */
 package org.gcube.informationsystem.model.embedded;
 
-import org.gcube.informationsystem.model.annotations.ISProperty;
-import org.gcube.informationsystem.model.annotations.ISPropertyRef;
-
-
-
 /**
  * @author Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/
- *
  */
 public interface RelationProperty extends Embedded {
 
@@ -42,12 +33,10 @@ public interface RelationProperty extends Embedded {
 		
 	}
 
-	@ISProperty
 	public ReferentiaIntegrity getReferentialIntegrity();
 	
 	public void setReferentialIntegrity(ReferentiaIntegrity referentialIntegrity);
 	
-	@ISPropertyRef
 	public AccessPolicy getPolicy();
 	
 	public void setPolicy(AccessPolicy accessPolicy);
diff --git a/src/main/java/org/gcube/informationsystem/model/embedded/ValueSchema.java b/src/main/java/org/gcube/informationsystem/model/embedded/ValueSchema.java
index ab279aa..76360ca 100644
--- a/src/main/java/org/gcube/informationsystem/model/embedded/ValueSchema.java
+++ b/src/main/java/org/gcube/informationsystem/model/embedded/ValueSchema.java
@@ -5,8 +5,6 @@ package org.gcube.informationsystem.model.embedded;
 
 import java.net.URI;
 
-import org.gcube.informationsystem.model.annotations.ISPropertyRef;
-
 /**
  * @author Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/
  * Base Interface for all type described by a value and a schema retrieved 
@@ -14,12 +12,10 @@ import org.gcube.informationsystem.model.annotations.ISPropertyRef;
  */
 public interface ValueSchema extends Embedded {
 
-	@ISPropertyRef
 	public String getValue();
 	
 	public void setValue(String value);
-	
-	@ISPropertyRef
+
 	public URI getSchema();
 	
 	public void setSchema(URI schema);
diff --git a/src/main/java/org/gcube/informationsystem/model/entity/Entity.java b/src/main/java/org/gcube/informationsystem/model/entity/Entity.java
index ab0d031..1b7322c 100644
--- a/src/main/java/org/gcube/informationsystem/model/entity/Entity.java
+++ b/src/main/java/org/gcube/informationsystem/model/entity/Entity.java
@@ -4,7 +4,6 @@
 package org.gcube.informationsystem.model.entity;
 
 import org.gcube.informationsystem.model.annotations.Abstract;
-import org.gcube.informationsystem.model.annotations.ISPropertyRef;
 import org.gcube.informationsystem.model.embedded.Header;
 
 
@@ -14,7 +13,6 @@ import org.gcube.informationsystem.model.embedded.Header;
 @Abstract
 public interface Entity {
 	
-	@ISPropertyRef
 	public Header getHeader();
 	
 }
diff --git a/src/main/java/org/gcube/informationsystem/model/relation/Relation.java b/src/main/java/org/gcube/informationsystem/model/relation/Relation.java
index c39a49a..e336e04 100644
--- a/src/main/java/org/gcube/informationsystem/model/relation/Relation.java
+++ b/src/main/java/org/gcube/informationsystem/model/relation/Relation.java
@@ -3,12 +3,9 @@
  */
 package org.gcube.informationsystem.model.relation;
 
-import org.gcube.informationsystem.model.annotations.ISPropertyRef;
 import org.gcube.informationsystem.model.embedded.RelationProperty;
 import org.gcube.informationsystem.model.entity.Entity;
 
-
-
 /**
  * @author Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/
  */
@@ -18,7 +15,6 @@ public interface Relation<Out extends Entity, In extends Entity> {
 	
 	public In getTarget();
 	
-	@ISPropertyRef
 	public RelationProperty getRelationProperty();
 	
 }