=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/analytics/AggregationType.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/analytics/AggregationType.java	2015-08-21 01:47:02 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/analytics/AggregationType.java	2015-09-15 05:39:53 +0000
@@ -55,7 +55,7 @@
 
     private final String value;
 
-    private AggregationType( String value )
+    AggregationType( String value )
     {
         this.value = value;
     }

=== modified file 'dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/util/ValidationUtils.java'
--- dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/util/ValidationUtils.java	2015-09-14 18:06:48 +0000
+++ dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/util/ValidationUtils.java	2015-09-15 05:39:53 +0000
@@ -32,6 +32,7 @@
 import org.apache.commons.validator.routines.DateValidator;
 import org.apache.commons.validator.routines.EmailValidator;
 import org.apache.commons.validator.routines.UrlValidator;
+import org.hisp.dhis.analytics.AggregationType;
 import org.hisp.dhis.common.ValueType;
 import org.hisp.dhis.commons.util.TextUtils;
 import org.hisp.dhis.dataelement.DataElement;
@@ -43,8 +44,6 @@
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import static org.hisp.dhis.dataelement.DataElement.*;
-
 /**
  * @author Lars Helge Overland
  */
@@ -388,10 +387,10 @@
      */
     public static boolean dataValueIsZeroAndInsignificant( String value, DataElement dataElement )
     {
-        String aggOperator = dataElement.getAggregationOperator();
+        AggregationType aggregationType = dataElement.getAggregationType();
 
         return dataElement.getValueType().isNumeric() && MathUtils.isZero( value ) && !dataElement.isZeroIsSignificant() &&
-            !(AGGREGATION_OPERATOR_AVERAGE_SUM.equals( aggOperator ) || AGGREGATION_OPERATOR_AVERAGE.equals( aggOperator ));
+            !(aggregationType == AggregationType.AVERAGE_SUM_ORG_UNIT || aggregationType == AggregationType.AVERAGE);
     }
 
     /**