diff --git a/src/wanijo/schema/domain.clj b/src/wanijo/schema/domain.clj
index e5208dc..e11a375 100644
--- a/src/wanijo/schema/domain.clj
+++ b/src/wanijo/schema/domain.clj
@@ -117,40 +117,75 @@
    schema))
 
 (neo4j/defquery
-  assigned-users
-  "MATCH (s:schema)-[:assigned_to]-(u:user)
+  assigned-read-users
+  "MATCH (s:schema)-[:read]-(u:user)
    WHERE s.uuid = {uuid}
    RETURN u
    ORDER BY u.ident")
 
-(defn assigned-users! [uuid]
+(defn assigned-read-users! [uuid]
   (map :u
        (neo4j/exec-query!
-        assigned-users
+        assigned-read-users
+        {:uuid uuid})))
+
+(neo4j/defquery
+  assigned-write-users
+  "MATCH (s:schema)-[:write]-(u:user)
+   WHERE s.uuid = {uuid}
+   RETURN u
+   ORDER BY u.ident")
+
+(defn assigned-write-users! [uuid]
+  (map :u
+       (neo4j/exec-query!
+        assigned-write-users
         {:uuid uuid})))
 
 (defn find-with-assigned-users! [uuid]
   (assoc (find-by-uuid! uuid)
-          :assigned (map :uuid (assigned-users! uuid))))
+         :assigned-read-users (map :uuid (assigned-read-users! uuid))
+         :assigned-write-users (map :uuid (assigned-write-users! uuid))))
 
 (neo4j/defquery
-  remove-assignments
-  "MATCH (s:schema)-[c:assigned_to]-(:user)
+  remove-read-assignments
+  "MATCH (s:schema)-[c:read]-(:user)
    WHERE s.uuid = {uuid}
    DELETE c")
 
 (neo4j/defquery
-  create-assignment
+  create-read-assignments
   "MATCH (s:schema), (u:user)
    WHERE s.uuid = {uuid}
      AND u.uuid IN {users}
-   CREATE (s)-[:assigned_to]->(u)")
+   CREATE (s)<-[:read]-(u)")
 
-(defn assign-users! [uuid users]
-  (neo4j/exec-query!
-   remove-assignments
-   {:uuid uuid})
-  (neo4j/exec-query!
-   create-assignment
-   {:uuid uuid
-    :users users}))
+(neo4j/defquery
+  remove-write-assignments
+  "MATCH (s:schema)-[c:write]-(:user)
+   WHERE s.uuid = {uuid}
+   DELETE c")
+
+(neo4j/defquery
+  create-write-assignments
+  "MATCH (s:schema), (u:user)
+   WHERE s.uuid = {uuid}
+     AND u.uuid IN {users}
+   CREATE (s)<-[:write]-(u)")
+
+(defn assign-users! [uuid users permission]
+  (if (= permission "write")
+    (do (neo4j/exec-query!
+         remove-write-assignments
+         {:uuid uuid})
+        (neo4j/exec-query!
+         create-write-assignments
+         {:uuid uuid
+          :users users}))
+    (do (neo4j/exec-query!
+         remove-read-assignments
+         {:uuid uuid})
+        (neo4j/exec-query!
+         create-read-assignments
+         {:uuid uuid
+          :users users}))))
diff --git a/src/wanijo/schema/routes.clj b/src/wanijo/schema/routes.clj
index c50d30f..f273dfb 100644
--- a/src/wanijo/schema/routes.clj
+++ b/src/wanijo/schema/routes.clj
@@ -44,15 +44,11 @@
       (view! uuid req))))
 
 (defn assign! [req]
-  (let [uuid (get-in req [:params :uuid])
-        users (get-in req [:params :assigned])]
-    (println (:params req))
+  (let [{:keys [uuid assigned]} (form/form-data view-schema/assign-form req)
+        permission (get-in req [:params :permission])]
     (if (form/valid? view-schema/assign-form req)
       (do
-        (domain/assign-users! uuid
-                              (if (vector? users)
-                                users
-                                [users]))
+        (domain/assign-users! uuid assigned permission)
         (resp/redirect (path :schema-show (:params req))))
       (view! uuid req))))
 
diff --git a/src/wanijo/schema/view.clj b/src/wanijo/schema/view.clj
index cddceb9..8ccfe74 100644
--- a/src/wanijo/schema/view.clj
+++ b/src/wanijo/schema/view.clj
@@ -35,7 +35,8 @@
   {:fields {:assigned {:label "Users"
                        :required false
                        :spec ::domain/assigned-to
-                       :widget :mselect}
+                       :widget :mselect
+                       :from-req #(if (vector? %) % [%])}
             :uuid {:widget :hidden}}})
 
 (defn overview! [req]
@@ -74,10 +75,6 @@
     (hform/form-to [:post (path :schema-edit)]
                    (form/render-widgets form schema req)
                    (hform/submit-button "Edit"))
-    [:h3 "Assign to users"]
-    (hform/form-to [:post (path :schema-assign)]
-                   (form/render-widgets assign-form schema req)
-                   (hform/submit-button "Assign"))
     [:h2 "Attributes"]
     [:ul.schema-attributes
      (for [attr attrs]
@@ -96,6 +93,23 @@
                    (form/render-widgets attr-form {} req)
                    (hform/hidden-field "schema" (:uuid schema))
                    (hform/submit-button "Create"))
+    [:h2 "Permissions"]
+    [:h3 "Read permissions"]
+    (hform/form-to [:post (path :schema-assign)]
+                   (form/render-widgets assign-form
+                                        (assoc schema :assigned
+                                               (:assigned-read-users schema))
+                                        req)
+                   (hform/hidden-field "permission" "read")
+                   (hform/submit-button "Assign"))
+    [:h3 "Write permissions"]
+    (hform/form-to [:post (path :schema-assign)]
+                   (form/render-widgets assign-form
+                                        (assoc schema :assigned
+                                               (:assigned-write-users schema))
+                                        req)
+                   (hform/hidden-field "permission" "write")
+                   (hform/submit-button "Assign"))
     [:h2 "Actions"]
     (hform/form-to {:class "inline"}
                    [:delete (path :schema-delete schema)]