diff --git a/be/app/Models/Team.php b/be/app/Models/Team.php
new file mode 100644
index 0000000..aa26518
--- /dev/null
+++ b/be/app/Models/Team.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Team extends Model
+{
+    use HasFactory;
+
+    public $timestamps = true;
+    protected $guarded = ['id', 'name'];
+
+    protected $table = 'teams';
+
+    public function users()
+    {
+        return $this->belongsToMany(User::class);
+    }
+}
diff --git a/be/app/Models/User.php b/be/app/Models/User.php
index 23b4063..a13a05a 100644
--- a/be/app/Models/User.php
+++ b/be/app/Models/User.php
@@ -2,7 +2,6 @@
 
 namespace App\Models;
 
-// use Illuminate\Contracts\Auth\MustVerifyEmail;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
@@ -33,12 +32,9 @@ class User extends Authenticatable
         'remember_token',
     ];
 
-    /**
-     * The attributes that should be cast.
-     *
-     * @var array<string, string>
-     */
-    protected $casts = [
-        'email_verified_at' => 'datetime',
-    ];
+    public function teams()
+    {
+        return $this->belongsToMany(Team::class);
+    }
+
 }
diff --git a/be/database/factories/TeamFactory.php b/be/database/factories/TeamFactory.php
new file mode 100644
index 0000000..4ae446c
--- /dev/null
+++ b/be/database/factories/TeamFactory.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Team;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Team>
+ */
+class TeamFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition()
+    {
+        return [
+            'name' => fake()->company(),
+        ];
+    }
+}
diff --git a/be/database/factories/UserFactory.php b/be/database/factories/UserFactory.php
index 41f8ae8..8b200c5 100644
--- a/be/database/factories/UserFactory.php
+++ b/be/database/factories/UserFactory.php
@@ -18,11 +18,15 @@ class UserFactory extends Factory
     public function definition()
     {
         return [
-            'name' => fake()->name(),
             'email' => fake()->unique()->safeEmail(),
-            'email_verified_at' => now(),
             'password' => '$2y$10$92IXUNpkjO0rOQ5byMi.Ye4oKoEa3Ro9llC/.og/at2.uheWG/igi', // password
             'remember_token' => Str::random(10),
+            'firstname' => fake()->firstname(),
+            'lastname' => fake()->lastname(),
+            'code' => strtoupper(Str::random(3)),
+            'work_start' => '9.0',
+            'work_end' => '17.0',
+
         ];
     }
 
diff --git a/be/database/migrations/2023_01_16_103816_create_teams_table.php b/be/database/migrations/2023_01_16_103816_create_teams_table.php
new file mode 100644
index 0000000..c91473e
--- /dev/null
+++ b/be/database/migrations/2023_01_16_103816_create_teams_table.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('teams', function (Blueprint $table) {
+            $table->id();
+            $table->string('name');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('teams');
+    }
+};
diff --git a/be/database/migrations/2023_01_17_071943_update_users_table.php b/be/database/migrations/2023_01_17_071943_update_users_table.php
new file mode 100644
index 0000000..6c7e1c2
--- /dev/null
+++ b/be/database/migrations/2023_01_17_071943_update_users_table.php
@@ -0,0 +1,39 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table) {
+            $table->dropColumn('name');
+            $table->dropColumn('email_verified_at');
+        });
+
+        Schema::table('users', function (Blueprint $table) {
+            $table->string('firstname');
+            $table->string('lastname');
+            $table->string('code');
+            $table->float('work_start', 3, 1);
+            $table->float('work_end', 3, 1);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('users');
+    }
+};
diff --git a/be/database/migrations/2023_01_17_073747_reorder_users_table.php b/be/database/migrations/2023_01_17_073747_reorder_users_table.php
new file mode 100644
index 0000000..aee1cbd
--- /dev/null
+++ b/be/database/migrations/2023_01_17_073747_reorder_users_table.php
@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        DB::statement('ALTER TABLE users MODIFY COLUMN created_at timestamp AFTER work_end');
+        DB::statement('ALTER TABLE users MODIFY COLUMN updated_at timestamp AFTER created_at');
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        //
+    }
+};
diff --git a/be/database/migrations/2023_01_17_081400_create_team_user_table.php b/be/database/migrations/2023_01_17_081400_create_team_user_table.php
new file mode 100644
index 0000000..8ce2510
--- /dev/null
+++ b/be/database/migrations/2023_01_17_081400_create_team_user_table.php
@@ -0,0 +1,31 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('team_user', function (Blueprint $table) {
+            $table->foreignIdFor(\App\Models\User::class);
+            $table->foreignIdFor(\App\Models\Team::class);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('team_user');
+    }
+};
diff --git a/be/database/seeders/TeamSeeder.php b/be/database/seeders/TeamSeeder.php
new file mode 100644
index 0000000..b3d4c23
--- /dev/null
+++ b/be/database/seeders/TeamSeeder.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\Team;
+use Illuminate\Database\Console\Seeds\WithoutModelEvents;
+use Illuminate\Database\Seeder;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Str;
+
+class TeamSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        Team::factory()
+            ->count(25)
+            ->hasUsers(5)
+            ->create();
+    }
+}
diff --git a/be/database/seeders/UserSeeder.php b/be/database/seeders/UserSeeder.php
new file mode 100644
index 0000000..b06c298
--- /dev/null
+++ b/be/database/seeders/UserSeeder.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\User;
+use Illuminate\Database\Console\Seeds\WithoutModelEvents;
+use Illuminate\Database\Seeder;
+
+class UserSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        User::factory()
+            ->count(200)
+            ->create();
+    }
+}