diff --git a/service.py b/service.py
index ae077b8..e35d12e 100644
--- a/service.py
+++ b/service.py
@@ -5,6 +5,7 @@ from os import path
 import subprocess as sub
 import re
 from typing import Any, Callable
+from enum import Enum
 
 P_BANNER = """
 ██╗    ██╗███████╗██╗     ██╗  ██╗ ██████╗ ███╗   ███╗
@@ -23,6 +24,13 @@ Opties:
 3) Recover omgeving(en)
 4) List omgeving(en)
 """
+class PortalOptions(Enum):
+    EXIT = "0"
+    CREATE = "1"
+    DESTROY = "2"
+    RECOVER = "3"
+    LIST = "4"
+
 
 RE_TEXT = re.compile(r"^\w+$")
 RE_NUM = re.compile(r"^\d+$")
@@ -89,16 +97,16 @@ def main() -> int:
     p = Prompter(ps1=f"{customer_name} > ")
     while True:
         print(P_OPTIONS)
-        c = p.take_input("Keuze: ", RE_ANY)
+        choice = p.take_input("Keuze: ", RE_ANY)
         print(end="\n")
 
-        if c == "0":
+        if choice == PortalOptions.EXIT.value:
             """
             Used to break out of the loop and exit the portal.
             """
             break
 
-        if c == "1":
+        if choice == PortalOptions.CREATE.value:
             """
             Used to either update or create an environment.
             """
@@ -159,7 +167,7 @@ def main() -> int:
             ])
             print(f"Omgeving `{env_name}` successvol gemaakt.")
 
-        if c == "2":
+        if choice == PortalOptions.DESTROY.value:
             """
             Deletes all traces of the chosen environment.
             """
@@ -168,7 +176,7 @@ def main() -> int:
             env_name = p.take_choice(fmt, envs)
             sub.call(["python3", "cli.py", "delete", customer_name, env_name])
 
-        if c == "3":
+        if choice == PortalOptions.RECOVER.value:
             """
             Allows the customer to "force" their environment into the desired `up-state`. 
             This `up-state` is a representation of the Vagrantfile, Ansible inventory and 
@@ -181,7 +189,7 @@ def main() -> int:
             env_name = p.take_choice(fmt, envs)
             sub.call(["python3", "cli.py", "recover", customer_name, env_name])
 
-        if c == "4":
+        if choice == PortalOptions.LIST.value:
             """
             This branch displays the customer's existing environments
             """