diff --git a/panoptes_aggregation/batch_aggregation.py b/panoptes_aggregation/batch_aggregation.py
index 93134ffc..16b02d6b 100644
--- a/panoptes_aggregation/batch_aggregation.py
+++ b/panoptes_aggregation/batch_aggregation.py
@@ -1,12 +1,13 @@
 from celery import Celery
-import csv
+import json
 import pandas as pd
 import os
 import urllib3
-import numpy as np
 import pandas as pd
 
 from panoptes_client import Panoptes, Project, Workflow
+from panoptes_aggregation.workflow_config import workflow_extractor_config, workflow_reducer_config
+from panoptes_aggregation.scripts import batch_utils
 from panoptes_client.panoptes import PanoptesAPIException
 
 import logging
@@ -25,6 +26,11 @@ def run_aggregation(project_id, workflow_id, user_id):
     wf_df = ba.process_wf_export(ba.wf_csv)
     cls_df = ba.process_cls_export(ba.cls_csv)
 
+    extractor_config = workflow_extractor_config(ba.tasks)
+    extracted_data = batch_utils.batch_extract(cls_df, extractor_config)
+
+    reducer_config = workflow_reducer_config(extractor_config)
+    reduced_data = batch_utils.batch_reduce(extracted_data, reducer_config)
 
 class BatchAggregator:
     """
@@ -54,11 +60,14 @@ def process_wf_export(self, wf_csv):
         self.wf_df = pd.read_csv(wf_csv)
         self.wf_maj_version = self.wf_df.query(f'workflow_id == {self.workflow_id}')['version'].max()
         self.wf_min_version = self.wf_df.query(f'workflow_id == {self.workflow_id} & version == {self.wf_maj_version}')['minor_version'].max()
+        self.workflow_version = f'{self.wf_maj_version}.{self.wf_min_version}'
+        self.workflow_row = self.wf_df.query(f'workflow_id == {self.workflow_id} & minor_version == {self.wf_min_version}')
+        self.tasks = json.loads(self.workflow_row.iloc[0]['tasks'])
         return self.wf_df
 
     def process_cls_export(self, cls_csv):
         cls_df = pd.read_csv(cls_csv)
-        self.cls_df = cls_df.query(f'workflow_version == {self.wf_maj_version}.{self.wf_min_version}')
+        self.cls_df = cls_df.query(f'workflow_version == {self.workflow_version}')
         return self.cls_df
 
     def _download_export(self, url, filepath):