diff --git a/api_v1/admin.py b/api_v1/admin.py
index 5fe1ec9..c818c3f 100644
--- a/api_v1/admin.py
+++ b/api_v1/admin.py
@@ -1,6 +1,6 @@
 from django.contrib import admin
 from .user.models import *
 
+# Register your models here.
 admin.site.register(UserInformation)
 
-# Register your models here.
diff --git a/api_v1/migrations/0001_createBasicUserInformation.py b/api_v1/migrations/0001_createBasicUserInformation.py
new file mode 100644
index 0000000..56a2538
--- /dev/null
+++ b/api_v1/migrations/0001_createBasicUserInformation.py
@@ -0,0 +1,24 @@
+# Generated by Django 5.0.2 on 2024-02-28 12:44
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('auth', '0012_alter_user_first_name_max_length'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UserInformation',
+            fields=[
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, primary_key=True, serialize=False, to=settings.AUTH_USER_MODEL)),
+                ('display_name', models.CharField(max_length=150)),
+            ],
+        ),
+    ]
diff --git a/api_v1/models.py b/api_v1/models.py
index 15377ca..152f52c 100644
--- a/api_v1/models.py
+++ b/api_v1/models.py
@@ -1,4 +1 @@
-from django.db import models
 from .user.models import *
-
-# Create your models here.
diff --git a/api_v1/user/__init__.py b/api_v1/user/__init__.py
index e69de29..1e010ce 100644
--- a/api_v1/user/__init__.py
+++ b/api_v1/user/__init__.py
@@ -0,0 +1,2 @@
+from .models import *
+from .user_services import *
\ No newline at end of file
diff --git a/api_v1/user/models/user_information.py b/api_v1/user/models/user_information.py
index a5816f9..0dbfc5a 100644
--- a/api_v1/user/models/user_information.py
+++ b/api_v1/user/models/user_information.py
@@ -5,4 +5,4 @@ from django.db import models
 class UserInformation(models.Model):
     user = models.OneToOneField(User, on_delete=models.CASCADE, primary_key=True)
 
-    display_name = models.CharField(max_length=150, null=True)
+    display_name = models.CharField(max_length=150, null=False)
diff --git a/api_v1/user/models/user_services.py b/api_v1/user/models/user_services.py
deleted file mode 100644
index e69de29..0000000
diff --git a/api_v1/user/user_services.py b/api_v1/user/user_services.py
new file mode 100644
index 0000000..22316c8
--- /dev/null
+++ b/api_v1/user/user_services.py
@@ -0,0 +1,48 @@
+from .models import UserInformation
+from django.contrib.auth.models import User
+from typing import Optional
+
+
+def create_user_information(user: User, *, display_name: Optional[str] = None) -> UserInformation:
+    """Create a UserInformation object for the given user.
+
+    @param user: The user to create the UserInformation object for.
+    @param display_name: The display name for the user. If None, the user's username will be used.
+    @return: The created UserInformation object.
+    """
+    user_information = UserInformation.objects.create(user=user, display_name=user.username)
+
+    # Use the given display name if provided.
+    if display_name is not None:
+        user_information.display_name = display_name
+        user_information.save()
+
+    return user_information
+
+
+def get_user_information(user: User) -> UserInformation:
+    """Get the UserInformation object for the given user.
+
+    @param user: The user to get the UserInformation object for.
+    @return: The UserInformation object for the given user.
+    """
+    return UserInformation.objects.get(user)
+
+
+def set_user_display_name(user: User, display_name: Optional[str] = None) -> UserInformation:
+    """Set the display name for the given user.
+
+    @param user: The user to set the display name for.
+    @param display_name: The display name to set for the user. If None, the user's username will be used.
+    @return: The UserInformation object for the given user.
+    """
+    user_information = UserInformation.objects.get(user)
+
+    # Set the display name to the given display name, or the user's username if None.
+    if display_name is not None:
+        user_information.display_name = display_name
+    else:
+        user_information.display_name = user.username
+
+    user_information.save()
+    return user_information