diff --git a/src/main/java/org/epos/handler/dbapi/dbapiimplementation/CategorySchemeDBAPI.java b/src/main/java/org/epos/handler/dbapi/dbapiimplementation/CategorySchemeDBAPI.java
index db5e930..31be8dd 100644
--- a/src/main/java/org/epos/handler/dbapi/dbapiimplementation/CategorySchemeDBAPI.java
+++ b/src/main/java/org/epos/handler/dbapi/dbapiimplementation/CategorySchemeDBAPI.java
@@ -1,6 +1,5 @@
 package org.epos.handler.dbapi.dbapiimplementation;
 
-import org.epos.eposdatamodel.Category;
 import org.epos.eposdatamodel.CategoryScheme;
 import org.epos.eposdatamodel.LinkedEntity;
 import org.epos.handler.dbapi.model.*;
diff --git a/src/main/java/org/epos/handler/dbapi/model/EDMCategoryScheme.java b/src/main/java/org/epos/handler/dbapi/model/EDMCategoryScheme.java
index 7926b99..917bcc1 100644
--- a/src/main/java/org/epos/handler/dbapi/model/EDMCategoryScheme.java
+++ b/src/main/java/org/epos/handler/dbapi/model/EDMCategoryScheme.java
@@ -22,7 +22,6 @@ public class EDMCategoryScheme {
     private String homepage;
     private String color;
     private String orderitemnumber;
-    private Collection<EDMHasTopConcept> hasTopConceptCategoriesById;
    
 
     @Id
@@ -114,16 +113,6 @@ public String getOrderitemnumber() {
 	public void setOrderitemnumber(String orderitemnumber) {
 		this.orderitemnumber = orderitemnumber;
 	}
-	
-    @OneToMany(mappedBy = "categoryByCategoryId", fetch=FetchType.LAZY)
-	public Collection<EDMHasTopConcept> getHasTopConceptCategoriesById() {
-		return hasTopConceptCategoriesById;
-	}
-
-	public void setHasTopConceptCategoriesById(Collection<EDMHasTopConcept> hasTopConceptCategoriesById) {
-		this.hasTopConceptCategoriesById = hasTopConceptCategoriesById;
-	}
-
 
 	@Override
 	public int hashCode() {
diff --git a/src/test/java/tests/APITests.java b/src/test/java/tests/APITests.java
index a5d3d31..6353ded 100644
--- a/src/test/java/tests/APITests.java
+++ b/src/test/java/tests/APITests.java
@@ -1031,7 +1031,8 @@ public class APITests {
 
 	public static void main(String[] args) {
 
-		DBAPIClient dbapi = new DBAPIClient();
+		testCategories();
+		/*DBAPIClient dbapi = new DBAPIClient();
 		
 		WebService a = new WebService();
 		a.setUid("a");
@@ -1051,7 +1052,7 @@ public static void main(String[] args) {
 		b.setRelation(les);
 		
 		LinkedEntity leB = dbapi.create(b);
-		System.out.println(leB);
+		System.out.println(leB);*/
 		
 		/*DataProduct dp = new DataProduct();
 		dp.setUid("prova-vv");