diff --git a/project/src/model/gateways/IndiceGateway.php b/project/src/model/gateways/IndiceGateway.php
new file mode 100644
index 0000000..cc4259e
--- /dev/null
+++ b/project/src/model/gateways/IndiceGateway.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace model;
+
+class IndiceGateway
+{
+
+    public function __construct(Connection $con)
+    {
+
+    }
+
+    public function getFromId(int $id) : array {
+
+    }
+
+    public function getFromScientifique(int $idScientifique) : array {
+
+    }
+}
\ No newline at end of file
diff --git a/project/src/model/gateways/PartieGateway.php b/project/src/model/gateways/PartieGateway.php
new file mode 100644
index 0000000..1480d11
--- /dev/null
+++ b/project/src/model/gateways/PartieGateway.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace model;
+
+class PartieGateway
+{
+    public function __construct(Connection $con)
+    {
+
+    }
+
+    public function getFromId(int $id) : Partie {
+
+    }
+
+    public function getFromCodeInvitation(string $code) : Partie {
+
+    }
+
+    public function creerPartie(Jeu $jeu, Joueur $joueur) : Partie {
+
+    }
+
+    public function rejoindrePartie(string $codeInvitation, Joueur $joueur) : bool {
+
+    }
+
+    public function supprimerPartie(int $id) : bool {
+
+    }
+}
\ No newline at end of file
diff --git a/project/src/model/gateways/QuestionGateway.php b/project/src/model/gateways/QuestionGateway.php
new file mode 100644
index 0000000..8c910fa
--- /dev/null
+++ b/project/src/model/gateways/QuestionGateway.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace model;
+
+class QuestionGateway
+{
+
+    public function __construct(Connection $con)
+    {
+
+    }
+
+    public function getRandom() : Question {
+
+    }
+
+    public function getFromId(int $id) : Question {
+
+    }
+}
\ No newline at end of file
diff --git a/project/src/model/gateways/ReponseGateway.php b/project/src/model/gateways/ReponseGateway.php
new file mode 100644
index 0000000..d93a23e
--- /dev/null
+++ b/project/src/model/gateways/ReponseGateway.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace model;
+
+class ReponseGateway
+{
+
+    public function __construct(Connection $con)
+    {
+
+    }
+
+    public function getFromId(int $id) : Reponse {
+
+    }
+
+    public function getFromQuestion(int $idQuestion) : array {
+
+    }
+}
\ No newline at end of file