diff --git a/backend/src/database/schemas/categories.ts b/backend/src/database/schemas/categories.ts
new file mode 100644
index 0000000..85db079
--- /dev/null
+++ b/backend/src/database/schemas/categories.ts
@@ -0,0 +1,24 @@
+import { index, pgTable, timestamp, uuid, varchar } from "drizzle-orm/pg-core";
+
+export const categories = pgTable(
+	"categories",
+	{
+		id: uuid("id").primaryKey().defaultRandom(),
+		name: varchar("name", { length: 64 }).notNull().unique(),
+		slug: varchar("slug", { length: 64 }).notNull().unique(),
+		description: varchar("description", { length: 255 }),
+		iconUrl: varchar("icon_url", { length: 512 }),
+		createdAt: timestamp("created_at", { withTimezone: true })
+			.notNull()
+			.defaultNow(),
+		updatedAt: timestamp("updated_at", { withTimezone: true })
+			.notNull()
+			.defaultNow(),
+	},
+	(table) => ({
+		slugIdx: index("categories_slug_idx").on(table.slug),
+	}),
+);
+
+export type CategoryInDb = typeof categories.$inferSelect;
+export type NewCategoryInDb = typeof categories.$inferInsert;
diff --git a/backend/src/database/schemas/content.ts b/backend/src/database/schemas/content.ts
index 6afc254..0c1c43c 100644
--- a/backend/src/database/schemas/content.ts
+++ b/backend/src/database/schemas/content.ts
@@ -8,6 +8,7 @@ import {
 	uuid,
 	varchar,
 } from "drizzle-orm/pg-core";
+import { categories } from "./categories";
 import { tags } from "./tags";
 import { users } from "./users";
 
@@ -21,10 +22,16 @@ export const contents = pgTable(
 			.notNull()
 			.references(() => users.uuid, { onDelete: "cascade" }),
 		type: contentType("type").notNull(),
+		categoryId: uuid("category_id").references(() => categories.id, {
+			onDelete: "set null",
+		}),
 		title: varchar("title", { length: 255 }).notNull(),
+		slug: varchar("slug", { length: 255 }).notNull().unique(),
 		storageKey: varchar("storage_key", { length: 512 }).notNull().unique(), // Clé interne S3
 		mimeType: varchar("mime_type", { length: 128 }).notNull(), // Pour le Content-Type HTTP
 		fileSize: integer("file_size").notNull(), // Taille en octets
+		views: integer("views").notNull().default(0),
+		usageCount: integer("usage_count").notNull().default(0),
 		createdAt: timestamp("created_at", { withTimezone: true })
 			.notNull()
 			.defaultNow(),
diff --git a/backend/src/database/schemas/favorites.ts b/backend/src/database/schemas/favorites.ts
new file mode 100644
index 0000000..8fdb195
--- /dev/null
+++ b/backend/src/database/schemas/favorites.ts
@@ -0,0 +1,24 @@
+import { pgTable, primaryKey, timestamp, uuid } from "drizzle-orm/pg-core";
+import { contents } from "./content";
+import { users } from "./users";
+
+export const favorites = pgTable(
+	"favorites",
+	{
+		userId: uuid("user_id")
+			.notNull()
+			.references(() => users.uuid, { onDelete: "cascade" }),
+		contentId: uuid("content_id")
+			.notNull()
+			.references(() => contents.id, { onDelete: "cascade" }),
+		createdAt: timestamp("created_at", { withTimezone: true })
+			.notNull()
+			.defaultNow(),
+	},
+	(t) => ({
+		pk: primaryKey({ columns: [t.userId, t.contentId] }),
+	}),
+);
+
+export type FavoriteInDb = typeof favorites.$inferSelect;
+export type NewFavoriteInDb = typeof favorites.$inferInsert;
diff --git a/backend/src/database/schemas/index.ts b/backend/src/database/schemas/index.ts
index 84583c0..4858b3d 100644
--- a/backend/src/database/schemas/index.ts
+++ b/backend/src/database/schemas/index.ts
@@ -1,6 +1,8 @@
 export * from "./api_keys";
 export * from "./audit_logs";
+export * from "./categories";
 export * from "./content";
+export * from "./favorites";
 export * from "./rbac";
 export * from "./reports";
 export * from "./sessions";
diff --git a/backend/src/database/schemas/tags.ts b/backend/src/database/schemas/tags.ts
index c55e009..88e05cd 100644
--- a/backend/src/database/schemas/tags.ts
+++ b/backend/src/database/schemas/tags.ts
@@ -1,4 +1,5 @@
 import { index, pgTable, timestamp, uuid, varchar } from "drizzle-orm/pg-core";
+import { users } from "./users";
 
 export const tags = pgTable(
 	"tags",
@@ -6,6 +7,9 @@ export const tags = pgTable(
 		id: uuid("id").primaryKey().defaultRandom(),
 		name: varchar("name", { length: 64 }).notNull().unique(),
 		slug: varchar("slug", { length: 64 }).notNull().unique(),
+		userId: uuid("user_id").references(() => users.uuid, {
+			onDelete: "set null",
+		}), // Créateur du tag
 		createdAt: timestamp("created_at", { withTimezone: true })
 			.notNull()
 			.defaultNow(),