--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/design/sequences/protocole.edit.diag	Mon Jul 17 16:37:09 2017 +0200
@@ -0,0 +1,33 @@
+seqdiag {
+
+  === show ===
+
+  browser ->  client           [label="open group info"]
+              client -> server [label="get last protocol for that group"]
+                        server -> server [label="collect ids + info of metacategories in current protocol"]
+              client <- server [label="list of indexed metacategories"]
+  browser <-  client           [label="render list of metacategories in current protocol"]
+
+  === edit ===
+
+  browser ->  client            [label="edit existing metacategory"]
+              client -> client  [label="stack changes"]
+  browser <-  client [label="activate submit button"]
+
+  browser  -> client            [label="add new metacategory"]
+              client -> client  [label="add new line to list of metacategories"]
+  browser  <- client            [label="(if not) activate submit button"]
+
+  === submit ===
+
+  browser -> client            [label="submit new list of metacategories"];
+  client --> browser           [label="set form as not editable and notify loading"];
+
+            client -> server  [label="write new protocol"]
+                       server -> server [label="generate new protocol id"]
+                       server --> server [label="create new metacategories"]
+                       server -> server [label="create new version of updated metacategories"]
+             client <- server  [label="return new protocol id and list of indexed metacategories"]
+  browser <-- client           [label="set form as editable but not submitable (no change)"]
+
+}