diff --git a/config/Validation.php b/config/Validation.php
new file mode 100644
index 0000000..f6bc5b4
--- /dev/null
+++ b/config/Validation.php
@@ -0,0 +1,40 @@
+<?php
+class Validation
+{
+
+	public static function netoyerNomTache(string $nom) : ?string
+	{
+		return filter_var($nom, FILTER_SANITIZE_STRING, FILTER_NULL_ON_FAILURE);
+	}
+	public static function netoyerCommentaireTache(string $comm) : ?string
+	{
+		return filter_var($comm, FILTER_SANITIZE_STRING, FILTER_NULL_ON_FAILURE);
+	}
+	public static function validerEffectuationTache($estFait) : bool
+	{
+		return filter_var($estFait, FILTER_VALIDATE_BOOL);
+	}
+
+	public static function netoyerEtValiderTache(string $nom, string $comm, bool $estFait)
+	{
+		$nom = self::netoyerNomTache($nom);
+		$comm = self::netoyerCommentaireTache($comm);
+		$estFaitValide = self::validerEffectuationTache($estFait);
+
+		if($nom == null || $comm == null || !$estFaitValide)
+		{
+			throw new UnexpectedValueException("Une des valeurs de la tache $nom n'est pas accéptable.");
+		}
+
+		return array(
+			'nom' => $nom,
+			'commentaire' => $comm,
+			'estFait' => $estFait
+		);
+	}
+
+	public static function validerUnIntSuperieurZero($int)
+	{
+		return filter_var($int, FILTER_VALIDATE_INT, array("min_range"=>1));
+	}
+}
diff --git a/config/dsn.php b/config/dsn.php
new file mode 100644
index 0000000..f3c1c6a
--- /dev/null
+++ b/config/dsn.php
@@ -0,0 +1,5 @@
+<?php
+	$dbType = "mysql";
+	$host = "berlin.iut.local/~alpoint";
+	$dnName = "alpoint";
+	$dsn = "$dbType:host=$host,dbname=$ddbName";