diff --git a/Refinaid/gui/Utils/Get.py b/Refinaid/Utils/Get.py
similarity index 99%
rename from Refinaid/gui/Utils/Get.py
rename to Refinaid/Utils/Get.py
index 2f54915..e12b456 100644
--- a/Refinaid/gui/Utils/Get.py
+++ b/Refinaid/Utils/Get.py
@@ -2,7 +2,7 @@
 '''
 Create Date: 2023/08/31
 Author: @1chooo(Hugo ChunHo Lin), @ReeveWu
-Version: v0.0.6
+Version: v0.0.7
 '''
 
 import pandas as pd
diff --git a/Refinaid/gui/Utils/Listener.py b/Refinaid/Utils/Listener.py
similarity index 90%
rename from Refinaid/gui/Utils/Listener.py
rename to Refinaid/Utils/Listener.py
index 60ad6e6..f1079d1 100644
--- a/Refinaid/gui/Utils/Listener.py
+++ b/Refinaid/Utils/Listener.py
@@ -5,14 +5,14 @@
 Version: v0.0.7
 '''
 
-from Refinaid.gui.Utils.Update import update_parameters
-from Refinaid.gui.Utils.Update import update_plot_x_parameters
-from Refinaid.gui.Utils.Update import update_plot_y_parameters
-from Refinaid.gui.Utils.Update import update_model_parameters
-from Refinaid.gui.Utils.Update import update_preprocessing_data
-from Refinaid.gui.Utils.Update import update_training_results
-from Refinaid.gui.Utils.Update import update_training_history
-from Refinaid.gui.Utils.Update import update_preprocessing_visualization
+from Refinaid.Utils.Update import update_parameters
+from Refinaid.Utils.Update import update_plot_x_parameters
+from Refinaid.Utils.Update import update_plot_y_parameters
+from Refinaid.Utils.Update import update_model_parameters
+from Refinaid.Utils.Update import update_preprocessing_data
+from Refinaid.Utils.Update import update_training_results
+from Refinaid.Utils.Update import update_training_history
+from Refinaid.Utils.Update import update_preprocessing_visualization
 
 def background_listener(
         dataset_dropdown,
diff --git a/Refinaid/gui/Utils/Update.py b/Refinaid/Utils/Update.py
similarity index 99%
rename from Refinaid/gui/Utils/Update.py
rename to Refinaid/Utils/Update.py
index dde02ec..b730b30 100644
--- a/Refinaid/gui/Utils/Update.py
+++ b/Refinaid/Utils/Update.py
@@ -1,12 +1,12 @@
 '''
 Create Date: 2023/09/02
 Author: @1chooo, @ReeveWu
-Version: v0.0.6
+Version: v0.0.7
 '''
 
 import gradio as gr
 from Refinaid.Action.Load import get_dataset_x_columns, get_dataset_numeric_columns
-from Refinaid.gui.Utils.Get import get_data_setting
+from Refinaid.Utils.Get import get_data_setting
 from Refinaid.Action.ML_configurations import DatasetConfig, DecisionTreeModelConfig, KNNModelConfig
 from Refinaid.Action.Model import training
 from Refinaid.Action.Load import get_dataframe
diff --git a/Refinaid/gui/Dashborad/Preprocessing.py b/Refinaid/gui/Dashborad/Preprocessing.py
index 057e74c..aef2d03 100644
--- a/Refinaid/gui/Dashborad/Preprocessing.py
+++ b/Refinaid/gui/Dashborad/Preprocessing.py
@@ -23,11 +23,7 @@ def get_dataset_info(
 
         dataset_header = gr.Markdown("### Dataset")
 
-        dataset_choices = [
-            "Titanic", 
-            "Diabetes", 
-            "House Prices",
-        ]
+        dataset_choices = self.page_content.dataset_choices
 
         dataset_dropdown = gr.Dropdown(
             label="Select Dataset", 
diff --git a/Refinaid/gui/Dashborad/Training.py b/Refinaid/gui/Dashborad/Training.py
index 8638495..096f617 100644
--- a/Refinaid/gui/Dashborad/Training.py
+++ b/Refinaid/gui/Dashborad/Training.py
@@ -18,7 +18,9 @@ def get_training_info(
             self, *args: Any, **kwargs: Any) -> Tuple[
                 gr.Markdown
             ]:
-        training_heading = gr.Markdown("## Training")
+        training_heading = gr.Markdown(
+            self.page_content.training_header    
+        )
 
         return (
             training_heading
diff --git a/Refinaid/gui/Example.py b/Refinaid/gui/Example.py
index ac483fe..8755676 100644
--- a/Refinaid/gui/Example.py
+++ b/Refinaid/gui/Example.py
@@ -2,7 +2,7 @@
 '''
 Create Date: 2023/08/31
 Author: @1chooo(Hugo ChunHo Lin), @ReeveWu
-Version: v0.0.6
+Version: v0.0.7
 '''
 
 import gradio as gr
@@ -22,7 +22,7 @@ def get_picked_up_data_example(
             testing_slider,
         ) -> gr.Examples:
         picked_up_data_example = gr.Examples(
-            [
+            examples=[
                 [
                     "Titanic", 
                     [
@@ -65,7 +65,7 @@ def get_picked_up_data_example(
                     20,
                 ],
             ],
-            [
+            inputs=[
                 dataset_dropdown,
                 parameters_dropdown,
                 miss_value_checkbox, 
@@ -73,7 +73,8 @@ def get_picked_up_data_example(
                 training_slider, 
                 validation_slider, 
                 testing_slider,
-            ]
+            ],
+            label='Data Preprocessing Example',
         )
 
         return picked_up_data_example
diff --git a/Refinaid/gui/Information.py b/Refinaid/gui/Information.py
index ac87921..085f1d8 100644
--- a/Refinaid/gui/Information.py
+++ b/Refinaid/gui/Information.py
@@ -2,7 +2,7 @@
 '''
 Create Date: 2023/08/31
 Author: @1chooo(Hugo ChunHo Lin), @ReeveWu
-Version: v0.0.6
+Version: v0.0.7
 '''
 
 from typing import Any, Tuple
@@ -20,5 +20,17 @@ def __init__(self, *args: Any, **kwargs: Any) -> None:
         """
 
         self.preprocessing_header = """\
-        ## Preprocessing
+        ## Data Preprocessing
+
+        Let's begin exploring the data preprocessing of machine learning!
+        """
+
+        self.training_header = """\
+        ## Training
         """
+
+        self.dataset_choices = [
+            "Titanic", 
+            "Diabetes", 
+            "House Prices",
+        ]
diff --git a/Refinaid/gui/Launch.py b/Refinaid/gui/Launch.py
index 28b0571..b4c359b 100644
--- a/Refinaid/gui/Launch.py
+++ b/Refinaid/gui/Launch.py
@@ -2,11 +2,11 @@
 '''
 Create Date: 2023/08/28
 Author: @1chooo(Hugo ChunHo Lin), @ReeveWu
-Version: v0.0.6
+Version: v0.0.7
 '''
 
 import gradio as gr
-from Refinaid.gui.Utils.Listener import background_listener
+from Refinaid.Utils.Listener import background_listener
 from Refinaid.gui.Information import PageContent
 from Refinaid.gui.Dashborad.Header import PageHeader
 from Refinaid.gui.Dashborad.Preprocessing import PreprocessingComponent
diff --git a/Refinaid/gui/Utils/__init__.py b/Refinaid/gui/Utils/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/test/wireframe/v_0_0_3.py b/test/wireframe/v_0_0_3.py
index fbb34f0..996ff0f 100644
--- a/test/wireframe/v_0_0_3.py
+++ b/test/wireframe/v_0_0_3.py
@@ -1,7 +1,7 @@
 '''
 Create Date: 2023/09/01
 Author: @1chooo
-Version: v0.0.3
+Version: v0.0.7
 '''
 
 import sys
@@ -17,12 +17,12 @@
 sys.path.append(project_root)
 
 import gradio as gr
-from Refinaid.gui.Utils.Update import update_parameters
-from Refinaid.gui.Utils.Update import update_plot_x_parameters
-from Refinaid.gui.Utils.Update import update_plot_y_parameters
-from Refinaid.gui.Utils.Update import update_model_parameters
-from Refinaid.gui.Utils.Update import update_preprocessing_data
-from Refinaid.gui.Utils.Update import update_training_results
+from Refinaid.Utils.Update import update_parameters
+from Refinaid.Utils.Update import update_plot_x_parameters
+from Refinaid.Utils.Update import update_plot_y_parameters
+from Refinaid.Utils.Update import update_model_parameters
+from Refinaid.Utils.Update import update_preprocessing_data
+from Refinaid.Utils.Update import update_training_results
 
 demo = gr.Blocks(
     title='Refinaid',