diff --git a/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java b/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java
index bd9affb..9b2e75d 100644
--- a/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java
+++ b/src/main/java/org/gcube/dataanalysis/geo/algorithms/MapsComparator.java
@@ -35,8 +35,8 @@ import org.opengis.metadata.Metadata;
 
 public class MapsComparator extends DataAnalysis {
 
-	static String layer1 = "LayerTitle_1";
-	static String layer2 = "LayerTitle_2";
+	static String layer1 = "Layer_1";
+	static String layer2 = "Layer_2";
 	static String zString = "Z";
 	static String t1 = "TimeIndex_1";
 	static String t2 = "TimeIndex_2";
@@ -57,7 +57,7 @@ public class MapsComparator extends DataAnalysis {
 	}
 
 	@Override
-	public LinkedHashMap<String, String> analyze() throws Exception {
+	public void compute() throws Exception{
 		status = 0;
 		AnalysisLogger.setLogger(config.getConfigPath() + AlgorithmConfiguration.defaultLoggerFile);
 		long t0 = System.currentTimeMillis();
@@ -181,11 +181,9 @@ public class MapsComparator extends DataAnalysis {
 			AnalysisLogger.getLogger().debug("MapsComparator: Deleting table " + rastertable2);
 			DatabaseFactory.executeSQLUpdate(DatabaseUtils.dropTableStatement(rastertable2), connection);
 			AnalysisLogger.getLogger().debug("MapsComparator: Elapsed: Whole operation completed in " + ((double) (System.currentTimeMillis() - t0) / 1000d) + "s");
-			return outputParameters;
 		} catch (Exception e) {
 			e.printStackTrace();
 			AnalysisLogger.getLogger().debug("MapsComparator: ERROR!: " + e.getLocalizedMessage());
-			return outputParameters;
 		} finally {
 			DatabaseUtils.closeDBConnection(connection);
 			status = 100;
@@ -276,6 +274,12 @@ public class MapsComparator extends DataAnalysis {
 	public float getStatus() {
 		return status;
 	}
+
+	@Override
+	public LinkedHashMap<String, String> analyze() throws Exception {
+		// TODO Auto-generated method stub
+		return null;
+	}
 	
 
 }