diff --git a/recopytex/dashboard/create_exam/app.py b/recopytex/dashboard/create_exam/app.py
index 513e1d9..44318ab 100644
--- a/recopytex/dashboard/create_exam/app.py
+++ b/recopytex/dashboard/create_exam/app.py
@@ -5,6 +5,7 @@ import dash
 import dash_html_components as html
 import dash_core_components as dcc
 import dash_table
+import plotly.graph_objects as go
 from datetime import date, datetime
 import uuid
 import pandas as pd
@@ -141,7 +142,7 @@ layout = html.Div(
                             id="competences-viz",
                         ),
                         html.Div(
-                            id="domains-viz",
+                            id="themes-viz",
                         ),
                     ],
                     id="visualisation",
@@ -316,6 +317,31 @@ def score_rate(data):
     return [html.P(f"Barème /{exam.score_rate}")]
 
 
+@app.callback(
+    dash.dependencies.Output("competences-viz", "figure"),
+    dash.dependencies.Input("exam_store", "data"),
+    prevent_initial_call=True,
+)
+def competences_viz(data):
+    exam = Exam(**data)
+    return [html.P(str(exam.competences_rate))]
+
+
+@app.callback(
+    dash.dependencies.Output("themes-viz", "children"),
+    dash.dependencies.Input("exam_store", "data"),
+    prevent_initial_call=True,
+)
+def themes_viz(data):
+    exam = Exam(**data)
+    themes_rate = exam.themes_rate
+    fig = go.Figure()
+    if themes_rate:
+        fig.add_trace(go.Pie(labels=list(themes_rate.keys()), values=list(themes_rate.values())))
+        return [dcc.Graph(figure=fig)]
+    return []
+
+
 @app.callback(
     dash.dependencies.Output("is-saved", "children"),
     dash.dependencies.Input("save-csv", "n_clicks"),
diff --git a/recopytex/scripts/exam.py b/recopytex/scripts/exam.py
index 40296ef..93170e9 100644
--- a/recopytex/scripts/exam.py
+++ b/recopytex/scripts/exam.py
@@ -165,3 +165,38 @@ class Exam:
             total += sum([q["score_rate"] for q in questions])
 
         return total
+
+    @property
+    def competences_rate(self):
+        """ Dictionnary with competences as key and total rate as value"""
+        rates = {}
+        for ex, questions in self._exercises.items():
+            for q in questions:
+                try:
+                    q["competence"]
+                except KeyError:
+                    pass
+                else:
+                    try:
+                        rates[q["competence"]] += q["score_rate"]
+                    except KeyError:
+                        rates[q["competence"]] = q["score_rate"]
+        return rates
+
+    @property
+    def themes_rate(self):
+        """ Dictionnary with themes as key and total rate as value"""
+        rates = {}
+        for ex, questions in self._exercises.items():
+            for q in questions:
+                try:
+                    q["theme"]
+                except KeyError:
+                    pass
+                else:
+                    if q["theme"]:
+                        try:
+                            rates[q["theme"]] += q["score_rate"]
+                        except KeyError:
+                            rates[q["theme"]] = q["score_rate"]
+        return rates