diff --git a/README.md b/README.md
index c8c584e..cd7347d 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-# [auth.rxbn.de](https://auth.rxbn.de) - Single sign-on GUI
+# [auth.rxbn.de](https://auth.rxbn.de) - Single sign-on (SSO) Service
+
+Single sign-on authentication and authorization service for rxbn.de services
 
 # start server
 ## normal start
@@ -11,7 +13,10 @@ $ DB_URL=mongodb://user:pass@ip:port/db NODE_ENV=debug node app.js
 ```
 
 # TODO
-| title | description | |
-| ----- | ----------- | - |
-| database models |
-| modules |
+| title | description | - |
+| ----- | ----------- | --- |
+| database models | user, service, etc. pp. | - |
+| modules | database, authentication, etc. pp. | - |
+| cli user management | get, add, modify, delete user data | - |
+| event handling | handle CLI events | - |
+| web service | GUI | - |