diff --git a/core/settings.py b/core/settings.py
index f524065..fa505c8 100644
--- a/core/settings.py
+++ b/core/settings.py
@@ -34,6 +34,9 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'inventory',
+    'transaction',
+    'user',
 ]
 
 MIDDLEWARE = [
diff --git a/inventory/__init__.py b/inventory/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/inventory/admin.py b/inventory/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/inventory/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/inventory/apps.py b/inventory/apps.py
new file mode 100644
index 0000000..905749f
--- /dev/null
+++ b/inventory/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class InventoryConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'inventory'
diff --git a/inventory/migrations/__init__.py b/inventory/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/inventory/models.py b/inventory/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/inventory/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/inventory/tests.py b/inventory/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/inventory/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/inventory/views.py b/inventory/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/inventory/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/sample.env b/sample.env
new file mode 100644
index 0000000..e69de29
diff --git a/transaction/__init__.py b/transaction/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/transaction/admin.py b/transaction/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/transaction/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/transaction/apps.py b/transaction/apps.py
new file mode 100644
index 0000000..815c657
--- /dev/null
+++ b/transaction/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class TransactionConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'transaction'
diff --git a/transaction/migrations/__init__.py b/transaction/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/transaction/models.py b/transaction/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/transaction/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/transaction/tests.py b/transaction/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/transaction/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/transaction/views.py b/transaction/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/transaction/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/user/__init__.py b/user/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/user/admin.py b/user/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/user/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/user/apps.py b/user/apps.py
new file mode 100644
index 0000000..36cce4c
--- /dev/null
+++ b/user/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class UserConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'user'
diff --git a/user/migrations/__init__.py b/user/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/user/models.py b/user/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/user/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/user/tests.py b/user/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/user/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/user/views.py b/user/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/user/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.