diff --git a/app/Http/Controllers/ItemCategoryController.php b/app/Http/Controllers/ItemCategoryController.php
new file mode 100644
index 00000000..72cd6ae8
--- /dev/null
+++ b/app/Http/Controllers/ItemCategoryController.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\ItemCategory;
+use Illuminate\Http\Request;
+
+class ItemCategoryController extends Controller
+{
+    /**
+     * Display a listing of the resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function index()
+    {
+        //
+    }
+
+    /**
+     * Show the form for creating a new resource.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function create()
+    {
+        //
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     *
+     * @param  \App\ItemCategory  $itemCategory
+     * @return \Illuminate\Http\Response
+     */
+    public function show(ItemCategory $itemCategory)
+    {
+        //
+    }
+
+    /**
+     * Show the form for editing the specified resource.
+     *
+     * @param  \App\ItemCategory  $itemCategory
+     * @return \Illuminate\Http\Response
+     */
+    public function edit(ItemCategory $itemCategory)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \App\ItemCategory  $itemCategory
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, ItemCategory $itemCategory)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     *
+     * @param  \App\ItemCategory  $itemCategory
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(ItemCategory $itemCategory)
+    {
+        //
+    }
+}
diff --git a/app/Item.php b/app/Item.php
index de83e594..8637119e 100644
--- a/app/Item.php
+++ b/app/Item.php
@@ -18,8 +18,17 @@ class Item extends Model
         return $col_items;
     }
 
+    protected $casts = [
+        'metadata' => 'array',
+    ];
+
     public function bookings()
     {
         return $this->hasMany('App\Booking');
     }
+
+    public function category()
+    {
+        return \App\ItemCategory::find($this->category_id);
+    }
 }
diff --git a/app/ItemCategory.php b/app/ItemCategory.php
new file mode 100644
index 00000000..b656ea4d
--- /dev/null
+++ b/app/ItemCategory.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ItemCategory extends Model
+{
+    public function items()
+    {
+        return $this->hasMany('App\Item','category_id');
+    }
+}
diff --git a/database/migrations/2018_09_07_104706_create_items_table.php b/database/migrations/2018_09_07_104706_create_items_table.php
index 1e5c5ef3..e76f42cf 100644
--- a/database/migrations/2018_09_07_104706_create_items_table.php
+++ b/database/migrations/2018_09_07_104706_create_items_table.php
@@ -15,9 +15,12 @@ class CreateItemsTable extends Migration
     {
         Schema::create('items', function (Blueprint $table) {
             $table->increments('id');
+            $table->integer('category_id');
             $table->integer('quantity');
             $table->string('name');
+            $table->string('official_number');
             $table->string('desc');
+            $table->text('metadata');
             $table->timestamps();
         });
     }
diff --git a/database/migrations/2019_08_27_074255_create_item_categories_table.php b/database/migrations/2019_08_27_074255_create_item_categories_table.php
new file mode 100644
index 00000000..9d516b36
--- /dev/null
+++ b/database/migrations/2019_08_27_074255_create_item_categories_table.php
@@ -0,0 +1,35 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateItemCategoriesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('item_categories', function (Blueprint $table) {
+            $table->increments('id');
+            $table->string('name');
+            $table->text('desc');
+            $table->boolean('is_training');
+            $table->boolean('is_op_appro');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('item_categories');
+    }
+}
diff --git a/resources/views/layouts/admin/sidebar.blade.php b/resources/views/layouts/admin/sidebar.blade.php
index 43cfca80..032f60f2 100644
--- a/resources/views/layouts/admin/sidebar.blade.php
+++ b/resources/views/layouts/admin/sidebar.blade.php
@@ -69,7 +69,6 @@
                 <p> Horaire</p>
             </a>
         </li>
-          <!--
         <li class="nav-item ">
             <a class="nav-link" data-toggle="collapse" href="#inventory">
                 <i class="material-icons">shopping_basket</i>
@@ -99,7 +98,7 @@
                     </li>
                 </ul>
             </div>
-        </li>-->
+        </li>
       <li class="nav-item ">
           <a class="nav-link" data-toggle="collapse" href="#inventory">
               <i class="material-icons">image</i>