diff --git a/README.md b/README.md
index a9e0ca7..725fe5c 100644
--- a/README.md
+++ b/README.md
@@ -38,11 +38,10 @@ webfuse solves this problem by using the [WebSocket](https://en.wikipedia.org/wi
 With webfuse it is possible to implement remote filesystems based on websockets.
 A reference implementation of such a daemon is provided within the examples. The picture above describes the workflow:
 
--   The websocket filesystem daemon (*webfuse daemon*) mounts a filesystem on startup.  
-    It starts the websocket server and waits for incoming connections.
+-   The websocket filesystem daemon (*webfuse daemon*) waits for incoming connections.
 
--   A remote filesystem provider connects to webfuse daemon via websocket protocol.  
-    The example includes such a provider implemented in HTML and JavaScript.
+-   A remote filesystem provider connects to webfuse daemon via websocket protocol and adds one or more filesystems.  
+    *Note: the examples include such a provider implemented in HTML and JavaScript.*
 
 -   Whenever the user makes filesystem requests, such as *ls*, the request is redirected via webfuse daemon to the connected filesystem provider
 
@@ -275,10 +274,21 @@ Read from an open file.
 
 ### Requests (Provider -> Adapter)
 
+#### add_filesystem
+
+Adds a filesystem.
+
+    fs provider: {"method": "add_filesytem", "params": [<name>], "id": <id>}
+    webfuse daemon: {"result": {"id": <name>}, "id": <id>}
+
+| Item        | Data type | Description                     |
+| ----------- | ----------| ------------------------------- |
+| name        | string    | name and id of filesystem       |
+
 #### authtenticate
 
 Authenticate the provider.  
-If authentication is enabled, a provider must be authenticated by the adapter before the adapter will send any messages.
+If authentication is enabled, a provider must be authenticated by the adapter before filesystems can be added.
 
     fs provider: {"method": "authenticate", "params": [<type>, <credentials>], "id": <id>}
     webfuse daemon: {"result": {}, "id": <id>}
diff --git a/doc/authenticate.png b/doc/authenticate.png
index b0df17d..b994033 100644
Binary files a/doc/authenticate.png and b/doc/authenticate.png differ
diff --git a/doc/authenticate.uml b/doc/authenticate.uml
index 00a5f52..263ac5b 100644
--- a/doc/authenticate.uml
+++ b/doc/authenticate.uml
@@ -1,12 +1,10 @@
 @startuml
 participant "Filesystem Provider\n(e.g. Webbrowser)" as provider
 participant "webfuse\ndaemon" as daemon
-actor "user" as user
 
-group directory listing fails without authentication
-user     -> daemon : ls
-daemon   -> daemon : is_authenticated
-daemon   -->x user : error: no entry
+group add filesystem fails without authentication
+provider -> daemon : add_filesystem
+daemon   -->x provider : error: access denied
 end
 
 
@@ -17,12 +15,10 @@ daemon -> daemon: check(credentials)
 daemon --> provider: result
 end
 
-group directory listing succeeds after authentication
-user     -> daemon : ls
-daemon   -> daemon : is_authenticated
-daemon   -> provider : readdir
-provider --> daemon : readdir_resp
-daemon   --> user : [., ..]
+group add filesystem succeeds after authentication
+    provider -> daemon: add_filesystem
+    daemon -> daemon : fuse_mount
+    daemon -> provider: okay
 end
 
 @enduml
\ No newline at end of file
diff --git a/doc/concept.png b/doc/concept.png
index 9ab4e90..64e3475 100644
Binary files a/doc/concept.png and b/doc/concept.png differ
diff --git a/doc/concept.uml b/doc/concept.uml
index a7ec266..f5d4cb0 100644
--- a/doc/concept.uml
+++ b/doc/concept.uml
@@ -4,7 +4,6 @@ participant "webfuse\ndaemon" as daemon
 actor "user" as user
 
 group startup
-daemon -> daemon : fuse_mount
 daemon -> daemon : start ws
 end
 ...
@@ -16,9 +15,15 @@ provider -> daemon : connect
     daemon -> daemon: check credentials
     daemon --> provider: okay
     end
+
+    provider -> daemon: add_filesystem
+    daemon -> daemon : fuse_mount
+    daemon -> provider: okay
+
 end
 ...
 
+
 group directory listing
 user     -> daemon : ls
 daemon   -> provider : readdir