diff --git a/app/assets/javascripts/app/controllers/ticket_overview.js.coffee b/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
index c9ebf5381..28f503f1b 100644
--- a/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
@@ -55,22 +55,19 @@ class Index extends App.ControllerContent
 
   load: (data) =>
     return if !data
-    return if !data.ticket_list
+    return if !data.ticket_ids
     return if !data.overview
 
     @overview      = data.overview
     @tickets_count = data.tickets_count
-    @ticket_list   = data.ticket_list
+    @ticket_ids    = data.ticket_ids
 
     if data.ajax
       data.ajax = false
       App.Store.write( @key, data )
 
-      # load user collection
-      App.Collection.load( type: 'User', data: data.collections.users )
-
-      # load ticket collection
-      App.Collection.load( type: 'Ticket', data: data.collections.tickets )
+      # load collections
+      App.Event.trigger 'loadAssets', data.assets
 
     # get meta data
     @overview = data.overview
@@ -87,7 +84,7 @@ class Index extends App.ControllerContent
       @fetch()
 
     @ticket_list_show = []
-    for ticket_id in @ticket_list
+    for ticket_id in @ticket_ids
       @ticket_list_show.push App.Ticket.retrieve( ticket_id )
 
     # remeber bulk attributes
@@ -497,7 +494,7 @@ class Router extends App.Controller
     cache = App.Store.get( @key )
     if cache
       @tickets_count = cache.tickets_count
-      @ticket_list   = cache.ticket_list
+      @ticket_ids    = cache.ticket_ids
       @redirect()
     else
       @ajax(
@@ -511,7 +508,7 @@ class Router extends App.Controller
       )
 
   load: (data) =>
-    @ticket_list   = data.ticket_list
+    @ticket_ids    = data.ticket_ids
     @tickets_count = data.tickets_count
 #    App.Store.write( data )
     @redirect()
@@ -524,19 +521,19 @@ class Router extends App.Controller
 
     # redirect
     if @direction == 'next'
-      if @ticket_list[ @position ] && @ticket_list[ @position ]
+      if @ticket_ids[ @position ] && @ticket_ids[ @position ]
         position = @position + 1
         @Config.set( 'LastOverviewPosition', position )
-        @navigate 'ticket/zoom/' + @ticket_list[ @position ] + '/nav/true'
+        @navigate 'ticket/zoom/' + @ticket_ids[ @position ] + '/nav/true'
       else
-        @navigate 'ticket/zoom/' + @ticket_list[ @position - 1 ] + '/nav/true'
+        @navigate 'ticket/zoom/' + @ticket_ids[ @position - 1 ] + '/nav/true'
     else
-      if @ticket_list[ @position - 2 ] && @ticket_list[ @position - 2 ] + '/nav/true'
+      if @ticket_ids[ @position - 2 ] && @ticket_ids[ @position - 2 ] + '/nav/true'
         position = @position - 1
         @Config.set( 'LastOverviewPosition', position )
-        @navigate 'ticket/zoom/' + @ticket_list[ @position - 2 ] + '/nav/true'
+        @navigate 'ticket/zoom/' + @ticket_ids[ @position - 2 ] + '/nav/true'
       else
-        @navigate 'ticket/zoom/' + @ticket_list[ @position - 1 ] + '/nav/true'
+        @navigate 'ticket/zoom/' + @ticket_ids[ @position - 1 ] + '/nav/true'
 
 App.Config.set( 'ticket_view/:view', Index, 'Routes' )
 App.Config.set( 'ticket_view/:view/:position/:direction', Router, 'Routes' )
diff --git a/app/controllers/ticket_overviews_controller.rb b/app/controllers/ticket_overviews_controller.rb
index b985a23eb..c0f38de75 100644
--- a/app/controllers/ticket_overviews_controller.rb
+++ b/app/controllers/ticket_overviews_controller.rb
@@ -8,7 +8,7 @@ class TicketOverviewsController < ApplicationController
 
     # get navbar overview data
     if !params[:view]
-      result = Ticket::Overview.list(
+      result = Ticket::Overviews.list(
         :current_user => current_user,
       )
       render :json => result
@@ -17,7 +17,7 @@ class TicketOverviewsController < ApplicationController
 
     # get real overview data
     if params[:array]
-      overview = Ticket::Overview.list(
+      overview = Ticket::Overviews.list(
         :view         => params[:view],
         :current_user => current_user,
         :array        => true,
@@ -36,7 +36,7 @@ class TicketOverviewsController < ApplicationController
       }
       return
     end
-    overview = Ticket::Overview.list(
+    overview = Ticket::Overviews.list(
       :view         => params[:view],
       :current_user => current_user,
       :array        => true,
diff --git a/app/models/ticket/overview.rb b/app/models/ticket/overviews.rb
similarity index 96%
rename from app/models/ticket/overview.rb
rename to app/models/ticket/overviews.rb
index d707a38da..13a9f7a9c 100644
--- a/app/models/ticket/overview.rb
+++ b/app/models/ticket/overviews.rb
@@ -1,14 +1,12 @@
 # Copyright (C) 2012-2013 Zammad Foundation, http://zammad-foundation.org/
 
-require 'overview'
-
-class Ticket::Overview
+module Ticket::Overviews
 
 =begin
 
 all overview by user
 
-  result = Ticket::Overview.all(
+  result = Ticket::Overviews.all(
     :current_user => User.find(123),
   )
 
@@ -28,20 +26,19 @@ returns
       else
         overviews = Overview.where( :role_id => role.id, :organization_shared => false, :active => true )
       end
-      return overviews
+     overviews
     end
 
     # get agent overviews
     role = data[:current_user].is_role( 'Agent' )
-    overviews = Overview.where( :role_id => role.id, :active => true )
-    return overviews
+    Overview.where( :role_id => role.id, :active => true )
   end
 
 =begin
 
 selected overview by user
 
-  result = Ticket::Overview.list(
+  result = Ticket::Overviews.list(
     :current_user => User.find(123),
     :view         => 'some_view_url',
   )
@@ -187,7 +184,6 @@ returns
       :tickets_count => tickets_count,
       :overview      => overview_selected_raw,
     }
-
   end
 
   private
@@ -249,5 +245,4 @@ returns
       bind[0] = sql
       return bind
     end
-
 end
\ No newline at end of file
diff --git a/lib/session.rb b/lib/session.rb
index aefc416c8..2b2f8b2f2 100644
--- a/lib/session.rb
+++ b/lib/session.rb
@@ -395,7 +395,7 @@ class UserState
       # overview
       cache_key = @cache_key + '_overview'
       if CacheIn.expired(cache_key)
-        overview = Ticket::Overview.list(
+        overview = Ticket::Overviews.list(
           :current_user => user,
         )
         overview_cache = CacheIn.get( cache_key, { :re_expire => true } )
@@ -410,13 +410,13 @@ class UserState
       end
 
       # overview lists
-      overviews = Ticket::Overview.all(
+      overviews = Ticket::Overviews.all(
         :current_user => user,
       )
       overviews.each { |overview|
         cache_key = @cache_key + '_overview_data_' + overview.link
         if CacheIn.expired(cache_key)
-          overview_data = Ticket::Overview.list(
+          overview_data = Ticket::Overviews.list(
             :view         => overview.link,
             :current_user => user,
             :array        => true,
@@ -597,14 +597,14 @@ class ClientState
       if !CacheIn.get( 'pushed_tickets' + @client_id.to_s )
         CacheIn.set( 'pushed_tickets' + @client_id.to_s , true, { :expires_in => 20.seconds } )
         if @pushed[:tickets]
-          tickets = []
+          tickets = {}
           users = {}
           @pushed[:tickets].each {|ticket_id, ticket_data|
             self.ticket( ticket_id, tickets, users )
           }
           if !tickets.empty?
-            tickets.each {|ticket|
-              self.log 'notify', "push update of already pushed ticket id #{ticket['id']}"
+            tickets.each {|id, ticket|
+              self.log 'notify', "push update of already pushed ticket id #{id}"
             }
             # send update to browser
             self.send({
@@ -637,7 +637,7 @@ class ClientState
       end
 
       # overview_data
-      overviews = Ticket::Overview.all(
+      overviews = Ticket::Overviews.all(
         :current_user => user,
       )
       overviews.each { |overview|
@@ -649,8 +649,8 @@ class ClientState
           overview_data = CacheIn.get( cache_key, { :ignore_expire => true } )
           self.log 'notify', "push overview_data #{overview.link} for user #{user.id}"
           users = {}
-          tickets = []
-          overview_data[:ticket_list].each {|ticket_id|
+          tickets = {}
+          overview_data[:ticket_ids].each {|ticket_id|
             self.ticket( ticket_id, tickets, users )
           }
 
@@ -677,21 +677,24 @@ class ClientState
           }
 
           # send update to browser
+          self.send({
+            :data => {
+              :users   => users,
+              :tickets => tickets,
+            },
+            :event => [ 'loadAssets' ]
+          })
           self.send({
             :data   => {
               :overview      => overview_data[:overview],
-              :ticket_list   => overview_data[:ticket_list],
+              :ticket_ids    => overview_data[:ticket_ids],
               :tickets_count => overview_data[:tickets_count],
-              :collections    => {
-                :User   => users,
-                :Ticket => tickets,
-              },
               :bulk => {
                 :group_id__owner_id => groups_users,
                 :owner_id           => [],
               },
             },
-            :event      => [ 'loadCollection', 'ticket_overview_rebuild' ],
+            :event      => [ 'ticket_overview_rebuild' ],
             :collection => 'ticket_overview_' + overview.link.to_s,
           })
         end
@@ -816,7 +819,7 @@ class ClientState
     ticket = Ticket.lookup( :id => ticket_id )
     if @pushed[:tickets][ticket_id] != ticket['updated_at']
       @pushed[:tickets][ticket_id] = ticket['updated_at']
-      tickets.push ticket
+      tickets[ticket_id] = ticket
     end
 
     # add users if needed