diff --git a/src/SymptomsByBatchcodesTableFactory.py b/src/SymptomByBatchcodeTableFactory.py
similarity index 72%
rename from src/SymptomsByBatchcodesTableFactory.py
rename to src/SymptomByBatchcodeTableFactory.py
index 82de5b0a6c2..e6a61e47555 100644
--- a/src/SymptomsByBatchcodesTableFactory.py
+++ b/src/SymptomByBatchcodeTableFactory.py
@@ -1,20 +1,20 @@
 import pandas as pd
 import numpy as np
 
-class SymptomsByBatchcodesTableFactory:
+class SymptomByBatchcodeTableFactory:
 
     @staticmethod
-    def createSymptomsByBatchcodesTable(VAERSVAX, VAERSSYMPTOMS):
-        index_columns = SymptomsByBatchcodesTableFactory._getIndexColumns(VAERSVAX)
+    def createSymptomByBatchcodeTable(VAERSVAX, VAERSSYMPTOMS):
+        index_columns = SymptomByBatchcodeTableFactory._getIndexColumns(VAERSVAX)
         symptomColumn = 'SYMPTOM'
         return pd.merge(
-            SymptomsByBatchcodesTableFactory._get_VAERSVAX_WITH_VAX_LOTS(VAERSVAX, index_columns),
-            SymptomsByBatchcodesTableFactory._getSymptomsTable(VAERSSYMPTOMS, symptomColumn),
+            SymptomByBatchcodeTableFactory._get_VAERSVAX_WITH_VAX_LOTS(VAERSVAX, index_columns),
+            SymptomByBatchcodeTableFactory._getSymptomsTable(VAERSSYMPTOMS, symptomColumn),
             on = 'VAERS_ID').set_index(index_columns)[[symptomColumn]]
     
     @staticmethod
     def _getIndexColumns(VAERSVAX):
-        return [f"VAX_LOT{num}" for num in range(1, SymptomsByBatchcodesTableFactory._getMaxNumShots(VAERSVAX) + 1)]
+        return [f"VAX_LOT{num}" for num in range(1, SymptomByBatchcodeTableFactory._getMaxNumShots(VAERSVAX) + 1)]
 
     @staticmethod
     def _getMaxNumShots(VAERSVAX):
@@ -23,7 +23,7 @@ class SymptomsByBatchcodesTableFactory:
     @staticmethod
     def _get_VAERSVAX_WITH_VAX_LOTS(VAERSVAX, index_columns):
         return pd.concat(
-            [VAERSVAX, SymptomsByBatchcodesTableFactory._getVaxLotsTable(VAERSVAX, index_columns)],
+            [VAERSVAX, SymptomByBatchcodeTableFactory._getVaxLotsTable(VAERSVAX, index_columns)],
             axis='columns').reset_index().drop_duplicates(subset = ['VAERS_ID'] + index_columns)
 
     @staticmethod
diff --git a/src/SymptomsByBatchcodesTableFactoryTest.py b/src/SymptomByBatchcodeTableFactoryTest.py
similarity index 90%
rename from src/SymptomsByBatchcodesTableFactoryTest.py
rename to src/SymptomByBatchcodeTableFactoryTest.py
index 1cc6d4b1549..68c2ee2f421 100644
--- a/src/SymptomsByBatchcodesTableFactoryTest.py
+++ b/src/SymptomByBatchcodeTableFactoryTest.py
@@ -1,14 +1,14 @@
 import unittest
 from pandas.testing import assert_frame_equal
 from TestHelper import TestHelper
-from SymptomsByBatchcodesTableFactory import SymptomsByBatchcodesTableFactory
+from SymptomByBatchcodeTableFactory import SymptomByBatchcodeTableFactory
 import pandas as pd
 import numpy as np
 
 # FIXME: brauchen Normalisierung analog zu DataFrameNormalizer.removeUnknownBatchCodes(dataFrame) und DataFrameNormalizer.convertVAX_LOTColumnToUpperCase(dataFrame)
-class SymptomsByBatchcodesTableFactoryTest(unittest.TestCase):
+class SymptomByBatchcodeTableFactoryTest(unittest.TestCase):
 
-    def test_createSymptomsByBatchcodesTable(self):
+    def test_createSymptomByBatchcodeTable(self):
         # Given
         VAERSVAX = TestHelper.createDataFrame(
             columns = ['VAX_TYPE', 'VAX_MANU',        'VAX_LOT', 'VAX_DOSE_SERIES'],
@@ -35,11 +35,11 @@ class SymptomsByBatchcodesTableFactoryTest(unittest.TestCase):
                         2547730]))
                 
         # When
-        symptomsByBatchcodesTable = SymptomsByBatchcodesTableFactory.createSymptomsByBatchcodesTable(VAERSVAX, VAERSSYMPTOMS)
+        symptomByBatchcodeTable = SymptomByBatchcodeTableFactory.createSymptomByBatchcodeTable(VAERSVAX, VAERSSYMPTOMS)
 
         # Then
         assert_frame_equal(
-            symptomsByBatchcodesTable,
+            symptomByBatchcodeTable,
             TestHelper.createDataFrame(
                 columns = ['SYMPTOM'],
                 data = [  ['Blood pressure orthostatic abnormal'],
@@ -59,7 +59,7 @@ class SymptomsByBatchcodesTableFactoryTest(unittest.TestCase):
                     names =   ['VAX_LOT1', 'VAX_LOT2'],
                     tuples = [['1808982', 'EW0175']] * 13)))
 
-    def test_createSymptomsByBatchcodesTable_two_patients_same_symptoms(self):
+    def test_createSymptomByBatchcodeTable_two_patients_same_symptoms(self):
         # Given
         VAERSVAX = TestHelper.createDataFrame(
             columns = ['VAX_TYPE', 'VAX_MANU', 'VAX_LOT', 'VAX_DOSE_SERIES'],
@@ -84,11 +84,11 @@ class SymptomsByBatchcodesTableFactoryTest(unittest.TestCase):
                         2547731]))
                 
         # When
-        symptomsByBatchcodesTable = SymptomsByBatchcodesTableFactory.createSymptomsByBatchcodesTable(VAERSVAX, VAERSSYMPTOMS)
+        symptomByBatchcodeTable = SymptomByBatchcodeTableFactory.createSymptomByBatchcodeTable(VAERSVAX, VAERSSYMPTOMS)
 
         # Then
         assert_frame_equal(
-            symptomsByBatchcodesTable,
+            symptomByBatchcodeTable,
             TestHelper.createDataFrame(
                 columns = ['SYMPTOM'],
                 data = [  ['Blood pressure orthostatic abnormal'],
@@ -99,7 +99,7 @@ class SymptomsByBatchcodesTableFactoryTest(unittest.TestCase):
                             'EW0175'])),
                 check_dtype = False)
 
-    def test_createSymptomsByBatchcodesTable_two_patients_distinct_symptoms(self):
+    def test_createSymptomByBatchcodeTable_two_patients_distinct_symptoms(self):
         # Given
         VAERSVAX = TestHelper.createDataFrame(
             columns = ['VAX_TYPE', 'VAX_MANU',        'VAX_LOT', 'VAX_DOSE_SERIES'],
@@ -134,11 +134,11 @@ class SymptomsByBatchcodesTableFactoryTest(unittest.TestCase):
                         2547744]))
                 
         # When
-        symptomsByBatchcodesTable = SymptomsByBatchcodesTableFactory.createSymptomsByBatchcodesTable(VAERSVAX, VAERSSYMPTOMS)
+        symptomByBatchcodeTable = SymptomByBatchcodeTableFactory.createSymptomByBatchcodeTable(VAERSVAX, VAERSSYMPTOMS)
 
         # Then
         assert_frame_equal(
-            symptomsByBatchcodesTable,
+            symptomByBatchcodeTable,
             TestHelper.createDataFrame(
                 columns = ['SYMPTOM'],
                 data = [  ['Blood pressure orthostatic abnormal'],