diff --git a/api/Diagram 2023-01-24 09-53-59.uxf b/api/Diagram 2023-01-24 09-53-59.uxf
new file mode 100644
index 0000000..995aa27
--- /dev/null
+++ b/api/Diagram 2023-01-24 09-53-59.uxf	
@@ -0,0 +1,22 @@
+<diagram program="umletino" version="15.0.0"><zoom_level>10</zoom_level><element><id>UMLClass</id><coordinates><x>200</x><y>170</y><w>210</w><h>120</h></coordinates><panel_attributes>USER
+--
+_id: INT_
+email: VARCHAR
+password: VARCHAR
+name: VARCHAR
+created_at: DATE
+updated_at: DATE</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>200</x><y>340</y><w>210</w><h>90</h></coordinates><panel_attributes>AUTHOR
+--
+_id: INT_
+fullname: VARCHAR
+created_at: DATE
+updated_at: DATE</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>400</x><y>380</y><w>130</w><h>40</h></coordinates><panel_attributes>m1=1
+m2=0..*</panel_attributes><additional_attributes>10;10;110;10</additional_attributes></element><element><id>UMLClass</id><coordinates><x>510</x><y>360</y><w>130</w><h>60</h></coordinates><panel_attributes>AUTHOR_PAINTING
+--
+_author_id: INT_
+_painting_id: INT_</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>560</x><y>280</y><w>50</w><h>100</h></coordinates><panel_attributes>m1=1
+m2=0..*</panel_attributes><additional_attributes>10;10;10;80</additional_attributes></element><element><id>UMLClass</id><coordinates><x>510</x><y>210</y><w>130</w><h>80</h></coordinates><panel_attributes>PAINTING
+--
+_id: INT_
+name: VARCHAR
+image_url: VARCHAR</panel_attributes><additional_attributes></additional_attributes></element></diagram>
\ No newline at end of file
diff --git a/api/Diagramme relation entité.png b/api/Diagramme relation entité.png
new file mode 100644
index 0000000..69961c4
Binary files /dev/null and b/api/Diagramme relation entité.png differ
diff --git a/prisma/migrations/20230306094642_initial_migration/migration.sql b/prisma/migrations/20230306094642_initial_migration/migration.sql
new file mode 100644
index 0000000..17bc432
--- /dev/null
+++ b/prisma/migrations/20230306094642_initial_migration/migration.sql
@@ -0,0 +1,45 @@
+-- CreateTable
+CREATE TABLE `User` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `email` VARCHAR(191) NOT NULL,
+    `password` VARCHAR(191) NOT NULL,
+    `name` VARCHAR(191) NOT NULL,
+    `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updated_at` DATETIME(3) NOT NULL,
+
+    UNIQUE INDEX `User_email_key`(`email`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Author` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `fullname` VARCHAR(191) NOT NULL,
+    `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `updated_at` DATETIME(3) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `Painting` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `image_url` VARCHAR(191) NOT NULL,
+
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `PaintingAuthor` (
+    `painting_id` INTEGER NOT NULL,
+    `author_id` INTEGER NOT NULL,
+
+    PRIMARY KEY (`painting_id`, `author_id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `PaintingAuthor` ADD CONSTRAINT `PaintingAuthor_painting_id_fkey` FOREIGN KEY (`painting_id`) REFERENCES `Painting`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `PaintingAuthor` ADD CONSTRAINT `PaintingAuthor_author_id_fkey` FOREIGN KEY (`author_id`) REFERENCES `Author`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/prisma/migrations/migration_lock.toml b/prisma/migrations/migration_lock.toml
new file mode 100644
index 0000000..e5a788a
--- /dev/null
+++ b/prisma/migrations/migration_lock.toml
@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "mysql"
\ No newline at end of file
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 132715d..4de02ae 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -15,3 +15,27 @@ model User {
     created_at DateTime @default(now())
     updated_at DateTime @updatedAt
 }
+
+model Author {
+    id             Int              @id @default(autoincrement())
+    fullname       String
+    created_at     DateTime         @default(now())
+    updated_at     DateTime         @updatedAt
+    PaintingAuthor PaintingAuthor[]
+}
+
+model Painting {
+    id             Int              @id @default(autoincrement())
+    name           String
+    image_url      String
+    PaintingAuthor PaintingAuthor[]
+}
+
+model PaintingAuthor {
+    painting    Painting @relation(fields: [painting_id], references: [id])
+    painting_id Int
+    author      Author   @relation(fields: [author_id], references: [id])
+    author_id   Int
+
+    @@id([painting_id, author_id])
+}