diff --git a/src/controller/base.py b/src/controller/base.py
index b036a39..bbbd735 100644
--- a/src/controller/base.py
+++ b/src/controller/base.py
@@ -1,17 +1,24 @@
 from __future__ import annotations
 
 import os
-from typing import Optional
+from typing import Optional, Union
 
+import pandas as pd
 from PyQt5.QtCore import QThread
 
 
 class BaseMediator:
-    def __init__(self, monitor: BaseDirectoryMonitor):
+    def __init__(self,
+                 monitor: BaseDirectoryMonitor,
+                 converter: BaseDataConverter):
         self._monitor = monitor
         self._monitor.mediator = self
+        self._converter = converter
+        self._converter.mediator = self
 
-    def notify(self, files: list[str]):
+    def notify(self,
+               source: Union[BaseDirectoryMonitor, BaseDataConverter],
+               data: Union[list[str], list[pd.DataFrame]]):
         ...
 
 
@@ -51,3 +58,19 @@ class BaseDirectoryMonitor(QThread):
     def _init_state(self):
         files = os.listdir(self._directory_path)
         self._files = files
+
+
+class BaseDataConverter:
+    def __init__(self, mediator: Optional[BaseMediator] = None):
+        self._mediator = mediator
+
+    @property
+    def mediator(self) -> BaseMediator:
+        return self._mediator
+
+    @mediator.setter
+    def mediator(self, mediator: BaseMediator) -> None:
+        self._mediator = mediator
+
+    def convert_data(self, files: list[str]) -> None:
+        ...
diff --git a/src/controller/converter.py b/src/controller/converter.py
new file mode 100644
index 0000000..2dde68e
--- /dev/null
+++ b/src/controller/converter.py
@@ -0,0 +1,20 @@
+import pandas as pd
+
+#FIXME: костыль для выключения предупреждения "replace deprecated". Потом надо поправить.
+pd.set_option('future.no_silent_downcasting', True)
+
+from controller.base import BaseDataConverter
+
+
+class DataConverter(BaseDataConverter):
+
+    @staticmethod
+    def _replace_bool(dataframe: pd.DataFrame) -> pd.DataFrame:
+        bool_columns = dataframe.columns[dataframe.isin([True, False]).any()]
+        dataframe[bool_columns] = dataframe[bool_columns].replace({True: 1, False: 0})
+        return dataframe
+
+    def convert_data(self, files: list[str]) -> None:
+        dataframes = [pd.read_csv(file) for file in files]
+        converted_dataframes = list(map(self._replace_bool, dataframes))
+        self._mediator.notify(self, converted_dataframes)
diff --git a/src/controller/mediator.py b/src/controller/mediator.py
index 90061fe..4c48415 100644
--- a/src/controller/mediator.py
+++ b/src/controller/mediator.py
@@ -1,13 +1,19 @@
-from controller.base import BaseMediator
+import pandas as pd
 
+from typing import Union
 from loguru import logger
 
+from controller.base import BaseMediator, BaseDirectoryMonitor, BaseDataConverter
+
 
 class Mediator(BaseMediator):
 
-    def notify(self, files: list[str]):
-        for file in files:
-            # TODO: create dataframe
-            # TODO: create plot widget
-            # TODO: send plot widget to controller
-            logger.info(f"File handled: {file}")
+    def notify(self,
+               source: Union[BaseDirectoryMonitor, BaseDataConverter],
+               data: Union[list[str], list[pd.DataFrame]]):
+        if issubclass(source.__class__, BaseDirectoryMonitor):
+            self._converter.convert_data(data)
+
+        if issubclass(source.__class__, BaseDataConverter):
+            # TODO: отправить датафреймы в конструктор графиков
+            logger.info(data)
diff --git a/src/controller/monitor.py b/src/controller/monitor.py
index e1d210b..f4fef70 100644
--- a/src/controller/monitor.py
+++ b/src/controller/monitor.py
@@ -14,10 +14,11 @@ class DirectoryMonitor(BaseDirectoryMonitor):
 
         while True:
             files = os.listdir(self._directory_path)
-            new_files = sorted(list(filter(lambda x: x not in self._files, files)))
+            new_files = sorted(list(map(lambda x: os.path.join(self._directory_path, x),
+                                        filter(lambda x: x not in self._files, files))))
             if new_files:
                 logger.info(f"New files detected: {new_files}")
-                self._mediator.notify(new_files)
+                self._mediator.notify(self, new_files)
                 self._files = files
             if not files:
                 self._files = []
diff --git a/src/main.py b/src/main.py
index 2e946c4..2b2e18c 100644
--- a/src/main.py
+++ b/src/main.py
@@ -7,6 +7,7 @@ from gui.mainGui import MainWindow
 from cfg.schema import ConfigSchema
 from controller.monitor import DirectoryMonitor
 from controller.mediator import Mediator
+from controller.converter import DataConverter
 
 
 def read_json(filepath: str) -> dict:
@@ -22,7 +23,8 @@ def main():
     app = QtWidgets.QApplication(sys.argv)
     config = ConfigSchema(**read_json("config/config.json"))
     monitor = DirectoryMonitor(config.trace_storage_path, config.monitor_update_period)
-    mediator = Mediator(monitor)
+    data_converter = DataConverter()
+    mediator = Mediator(monitor, data_converter)
     monitor.start()
 
     window = MainWindow()