diff --git a/database/migrations/2018_09_09_083711_add_factor_field_to_i_o_types_table.php b/database/migrations/2018_09_09_083711_add_factor_field_to_i_o_types_table.php
new file mode 100644
index 0000000..a96501f
--- /dev/null
+++ b/database/migrations/2018_09_09_083711_add_factor_field_to_i_o_types_table.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddFactorFieldToIOTypesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('i_o_types', function (Blueprint $table) {
+            $table->tinyInteger('factor');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('i_o_types', function (Blueprint $table) {
+            $table->dropColumn('factor');
+        });
+    }
+}
diff --git a/database/seeds/IOTypesTableSeeder.php b/database/seeds/IOTypesTableSeeder.php
new file mode 100644
index 0000000..3b3bc80
--- /dev/null
+++ b/database/seeds/IOTypesTableSeeder.php
@@ -0,0 +1,19 @@
+<?php
+
+use Illuminate\Database\Seeder;
+
+class IOTypesTableSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        DB::table('i_o_types')->insert([
+            ['name' => 'Einnahme', 'factor' => 1],
+            ['name' => 'Ausgabe', 'factor' => -1]
+        ]);
+    }
+}
diff --git a/database/seeds/ScopesTableSeeder.php b/database/seeds/ScopesTableSeeder.php
new file mode 100644
index 0000000..f652032
--- /dev/null
+++ b/database/seeds/ScopesTableSeeder.php
@@ -0,0 +1,16 @@
+<?php
+
+use Illuminate\Database\Seeder;
+
+class ScopesTableSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        //
+    }
+}