diff --git a/benchmark/src/main/java/de/tudresden/inf/st/eraser/benchmark/Benchmark.java b/benchmark/src/main/java/de/tudresden/inf/st/eraser/benchmark/Benchmark.java
index a22f1b7bb610895afbdfa7f589388129288761a5..a8a9e95b0b173dddef7eb3f1c9cd524525142ecb 100644
--- a/benchmark/src/main/java/de/tudresden/inf/st/eraser/benchmark/Benchmark.java
+++ b/benchmark/src/main/java/de/tudresden/inf/st/eraser/benchmark/Benchmark.java
@@ -9,6 +9,7 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
 import java.util.Arrays;
@@ -69,7 +70,6 @@ public class Benchmark {
             int i = 0;
             while ((a_next_record = a_csv_reader.readNext())!= null){
                 if( i==0 ){
-
                     getCSVHeader(Arrays.copyOf(a_next_record,12),"a");
                     i++;
                 }
@@ -86,11 +86,14 @@ public class Benchmark {
                             setNewValue(values1, PREFERENCE_ITEM_NAME,"preference");
                             // wait for 1s
                             try{Thread.sleep(TIME_PERIOD);}catch (InterruptedException e){e.printStackTrace();}
+                            logger.warn("checking/comparing the result from web server with the CSV");
                             HttpResponse response= Request.Get(ACTIVITY_URL).execute().returnResponse();
                             HttpResponse response1= Request.Get(PREFERENCE_URL).execute().returnResponse();
                             //check response
-                            checkResult(response, a_next_record);
-                            checkResult(response1, p_next_record);
+                            checkResult(response, a_next_record,null);
+                            checkResult(response1, p_next_record,a_next_record[12]);
+                            logger.warn("checking/comparing finised");
+                            //logger.info("checking/comparing finished");
                             break;
                         }
                     }
@@ -115,7 +118,7 @@ public class Benchmark {
                             .execute().returnResponse();
                     String status=httpResponse.getStatusLine().toString();
                     if(status.contains("200")){
-                        logger.info("put activity input name: "+name[i]+", value: "+value+"to web server: response 200 ok");
+                        logger.info("put activity input name: "+ name[i] +", value: "+ value +" to web server: response 200 ok");
                     }else{
                         logger.info("can not put activity inputs to rest server");
                     }
@@ -130,8 +133,9 @@ public class Benchmark {
                 HttpResponse httpResponse = Request.Put(uri)
                         .bodyString(values[1], ContentType.TEXT_PLAIN)
                         .execute().returnResponse();
-                String put_response=httpResponse.getStatusLine().toString();
-                if (put_response.contains("200")){logger.info("put w_brightness to web server: response 200 ok");}else{
+                String put_response = httpResponse.getStatusLine().toString();
+                if (put_response.contains("200")){logger.info("put preference input name: w_brightness, value : " +
+                        values[1]+" to web server: response 200 ok");} else{
                     logger.info("can not put w_brightness to rest server");
                 }
             }catch (Exception e){
@@ -148,19 +152,18 @@ public class Benchmark {
             PREFERENCE_ITEM_NAME = a_values;
         }
     }
-    private void checkResult(HttpResponse response,String[] record){
+    private void checkResult(HttpResponse response,String[] record, String activity){
         int status = response.getStatusLine().getStatusCode();
         if(status == 200 && record.length == 13){
             logger.info("activity should be (read direct from CSV): " + record[12]);
             try {
-                logger.info(EntityUtils.toString(response.getEntity()));
+                logger.info("get activity from web server: response 200 ok, value is: "+
+                        EntityUtils.toString(response.getEntity()));
             }catch (IOException e){
                 e.printStackTrace();
             }
-            logger.info("get activity from web server: response 200 ok");
-
         }else if(status ==200 && record.length == 4){
-            logger.info("preference should be (read direct from CSV): " + getPreference(record));
+            logger.info("preference should be (read direct from CSV): " + comparePreferenceOutput(record,activity));
             try {
             logger.info("get the iris1_item preference from web server: response 200 ok, value is: " +
                     EntityUtils.toString(response.getEntity()));
@@ -168,8 +171,7 @@ public class Benchmark {
                 e.printStackTrace();
             }
 
-        }else if(status !=
-                200 &&record.length == 13){
+        }else if(status != 200 &&record.length == 13){
             logger.info("can not get the activity from the web server");
 
         }
@@ -180,8 +182,22 @@ public class Benchmark {
         }
     }
 
-    private String getPreference(String[] record){
-        return "";
-
+    private String comparePreferenceOutput(String[] record, String activity){
+        String output = null;
+        String brightness=record[1];
+        File file =  new File(p_csv_file_path);
+        FileReader reader;
+        CSVReader csv_reader;
+        try{
+            reader = new FileReader(file);
+            csv_reader=new CSVReader(reader);
+            String[] next_record;
+            while ((next_record = csv_reader.readNext())!= null){
+                if (next_record[0].equals(activity) && next_record[1].equals(brightness)){
+                    output = next_record[2]+",100,"+next_record[3];
+                }
+            }
+        }catch (Exception e){e.printStackTrace();}
+        return output;
     }
 }
\ No newline at end of file