diff --git a/TD3_DEV51_Qualite_Algo/.idea/compiler.xml b/TD3_DEV51_Qualite_Algo/.idea/compiler.xml
new file mode 100644
index 0000000..7cea7f6
--- /dev/null
+++ b/TD3_DEV51_Qualite_Algo/.idea/compiler.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="TD3_DEV51_Qualite_Algo" />
+      </profile>
+    </annotationProcessing>
+  </component>
+</project>
\ No newline at end of file
diff --git a/TD3_DEV51_Qualite_Algo/.idea/encodings.xml b/TD3_DEV51_Qualite_Algo/.idea/encodings.xml
new file mode 100644
index 0000000..aa00ffa
--- /dev/null
+++ b/TD3_DEV51_Qualite_Algo/.idea/encodings.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/TD3_DEV51_Qualite_Algo/.idea/jarRepositories.xml b/TD3_DEV51_Qualite_Algo/.idea/jarRepositories.xml
new file mode 100644
index 0000000..712ab9d
--- /dev/null
+++ b/TD3_DEV51_Qualite_Algo/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://repo.maven.apache.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file
diff --git a/TD3_DEV51_Qualite_Algo/.idea/vcs.xml b/TD3_DEV51_Qualite_Algo/.idea/vcs.xml
new file mode 100644
index 0000000..6c0b863
--- /dev/null
+++ b/TD3_DEV51_Qualite_Algo/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/TD3_DEV51_Qualite_Algo/src/main/java/fr/iutfbleau/TD3_DEV51_Qualite_Algo/Models/Lettre.java b/TD3_DEV51_Qualite_Algo/src/main/java/fr/iutfbleau/TD3_DEV51_Qualite_Algo/Models/Letter.java
similarity index 100%
rename from TD3_DEV51_Qualite_Algo/src/main/java/fr/iutfbleau/TD3_DEV51_Qualite_Algo/Models/Lettre.java
rename to TD3_DEV51_Qualite_Algo/src/main/java/fr/iutfbleau/TD3_DEV51_Qualite_Algo/Models/Letter.java