diff --git a/src/twomartens/masterthesis/main.py b/src/twomartens/masterthesis/main.py
index 39d8645..a743262 100644
--- a/src/twomartens/masterthesis/main.py
+++ b/src/twomartens/masterthesis/main.py
@@ -39,11 +39,11 @@ def main() -> None:
     
     train_parser = sub_parsers.add_parser("train", help="Train a network")
     test_parser = sub_parsers.add_parser("test", help="Test a network")
-    use_parser = sub_parsers.add_parser("use", help="Use a network")
+    val_parser = sub_parsers.add_parser("val", help="Validate a network")
     
     # build sub parsers
     _build_train(train_parser)
-    _build_use(use_parser)
+    _build_val(val_parser)
     
     args = parser.parse_args()
     
@@ -51,8 +51,8 @@ def main() -> None:
         _train(args)
     elif args.action == "test":
         _test(args)
-    elif args.action == "use":
-        _use(args)
+    elif args.action == "val":
+        _val(args)
 
 
 def _build_train(parser: argparse.ArgumentParser) -> None:
@@ -67,7 +67,7 @@ def _build_train(parser: argparse.ArgumentParser) -> None:
     _build_auto_encoder_train(auto_encoder_parser)
     
 
-def _build_use(parser: argparse.ArgumentParser) -> None:
+def _build_val(parser: argparse.ArgumentParser) -> None:
     sub_parsers = parser.add_subparsers(dest="network")
     sub_parsers.required = True
     
@@ -75,7 +75,7 @@ def _build_use(parser: argparse.ArgumentParser) -> None:
     auto_encoder_parser = sub_parsers.add_parser("auto_encoder", help="Auto-encoder network")
     
     # build sub parsers
-    _build_auto_encoder_use(auto_encoder_parser)
+    _build_auto_encoder_val(auto_encoder_parser)
 
 
 def _build_auto_encoder_train(parser: argparse.ArgumentParser) -> None:
@@ -87,13 +87,13 @@ def _build_auto_encoder_train(parser: argparse.ArgumentParser) -> None:
     parser.add_argument("iteration", type=int, help="the training iteration")
 
 
-def _build_auto_encoder_use(parser: argparse.ArgumentParser) -> None:
+def _build_auto_encoder_val(parser: argparse.ArgumentParser) -> None:
     parser.add_argument("--coco_path", type=str, help="the path to the COCO data set")
     parser.add_argument("--weights_path", type=str, help="path to the weights directory")
     parser.add_argument("--summary_path", type=str, help="path to the summaries directory")
-    parser.add_argument("category", type=int, help="the COCO category to use")
+    parser.add_argument("category", type=int, help="the COCO category to validate")
     parser.add_argument("category_trained", type=int, help="the trained COCO category")
-    parser.add_argument("iteration", type=int, help="the use iteration")
+    parser.add_argument("iteration", type=int, help="the validation iteration")
     parser.add_argument("iteration_trained", type=int, help="the training iteration")
 
 
@@ -112,7 +112,7 @@ def _test(args: argparse.Namespace) -> None:
     raise NotImplementedError
 
 
-def _use(args: argparse.Namespace) -> None:
+def _val(args: argparse.Namespace) -> None:
     from twomartens.masterthesis import data
     from twomartens.masterthesis.aae import run
     import tensorflow as tf
@@ -123,10 +123,10 @@ def _use(args: argparse.Namespace) -> None:
     category = args.category
     category_trained = args.category_trained
     batch_size = 16
-    coco_data = data.load_coco_train(coco_path, category, num_epochs=1,
-                                     batch_size=batch_size, resized_shape=(256, 256))
+    coco_data = data.load_coco_val(coco_path, category, num_epochs=1,
+                                   batch_size=batch_size, resized_shape=(256, 256))
     use_summary_writer = summary_ops_v2.create_file_writer(
-        f"{args.summary_path}/use/category-{category}/{args.iteration}"
+        f"{args.summary_path}/val/category-{category}/{args.iteration}"
     )
     with use_summary_writer.as_default():
         run.run_simple(coco_data, iteration=args.iteration_trained, debug=args.debug,