diff --git a/issue_relations/app/models/issue_relation.rb b/issue_relations/app/models/issue_relation.rb
new file mode 100644
index 000000000..f0c760278
--- /dev/null
+++ b/issue_relations/app/models/issue_relation.rb
@@ -0,0 +1,19 @@
+class IssueRelation < ActiveRecord::Base
+  belongs_to :issue
+  belongs_to :issue_to, :class_name => 'Issue', :foreign_key => 'issue_to_id'
+  
+  TYPES = { "ES" => { :name => :label_rel_end_to_start, :order => 1 },
+            "EE" => { :name => :label_rel_end_to_end, :order => 2 },
+            "SS" => { :name => :label_rel_start_to_start, :order => 3 },
+            "SE" => { :name => :label_rel_start_to_end, :order => 4 }
+  }.freeze
+
+  validates_presence_of :issue, :issue_to, :relation_type, :delay
+  validates_inclusion_of :relation_type, :in => TYPES.keys
+  validates_numericality_of :delay, :allow_nil => true
+  
+  def validate
+    errors.add :issue_to_id, :activerecord_error_invalid if issue_id == issue_to_id
+  end
+  
+end
diff --git a/issue_relations/app/views/issues/relations.rhtml b/issue_relations/app/views/issues/relations.rhtml
new file mode 100644
index 000000000..5e96a9d3b
--- /dev/null
+++ b/issue_relations/app/views/issues/relations.rhtml
@@ -0,0 +1,49 @@
+<h2><%= @issue.tracker.name %> #<%= @issue.id %> - <%=h @issue.subject %></h2>
+
+<table class="list">
+<thead>
+<th></th>
+<th>Task</th>
+<th>Debut</th>
+<th>Fin</th>
+<th>Type</th>
+<th>Retard</th>
+</thead>
+<tbody>
+<tr><th colspan="6">Predecesseurs</th></tr>
+<% @issue.relations_from.each do |relation| %>
+<tr class="<%= cycle 'odd', 'even' %>">
+<td style="width:20px;"><%= image_tag 'relation_from.png' %></td>
+<td><%= relation.issue_id %>: <%= relation.issue.subject %></td>
+<td align="center"><%= format_date(relation.issue.start_date) %></td>
+<td align="center"><%= format_date(relation.issue.due_date) %></td>
+<td align="center"><%= l(IssueRelation::TYPES[relation.relation_type][:name]) %></td>
+<td align="center"><%= relation.delay %> jours</td>
+</tr>
+<% end %>
+<tr><th colspan="6">Successeurs</th></tr>
+<% @issue.relations_to.each do |relation| %>
+<tr class="<%= cycle 'odd', 'even' %>">
+<td style="width:20px;"><%= image_tag 'relation_to.png' %></td>
+<td><%= relation.issue_to_id %>: <%= relation.issue_to.subject %></td>
+<td align="center"><%= format_date(relation.issue_to.start_date) %></td>
+<td align="center"><%= format_date(relation.issue_to.due_date) %></td>
+<td align="center"><%= l(IssueRelation::TYPES[relation.relation_type][:name]) %></td>
+<td align="center"><%= relation.delay %> jours</td>
+</tr>
+<% end %>
+</tbody>
+</table>
+<br />
+
+<p><strong>Nouveau predecesseur</strong></p>
+
+<% form_for :relation, @relation, :url => { :action => 'add_predecessor', :id => @issue } do |f| %>
+<%= error_messages_for 'relation' %>
+<p>
+<%= f.text_field :issue_id, :required => true %>
+<%= f.select :relation_type, relation_types_for_select, :required => true %>
+<%= f.text_field :delay, :required => true, :size => 3 %> jours
+<%= submit_tag l(:button_add) %>
+</p>
+<% end %>
\ No newline at end of file
diff --git a/issue_relations/db/migrate/017_create_issue_relations.rb b/issue_relations/db/migrate/017_create_issue_relations.rb
new file mode 100644
index 000000000..a0dea293f
--- /dev/null
+++ b/issue_relations/db/migrate/017_create_issue_relations.rb
@@ -0,0 +1,11 @@
+class CreateIssueRelations < ActiveRecord::Migration
+  def self.up
+    create_table :issue_relations do |t|
+      # t.column :name, :string
+    end
+  end
+
+  def self.down
+    drop_table :issue_relations
+  end
+end
diff --git a/issue_relations/public/images/relation_from.png b/issue_relations/public/images/relation_from.png
new file mode 100644
index 000000000..5b09f4fd8
Binary files /dev/null and b/issue_relations/public/images/relation_from.png differ
diff --git a/issue_relations/public/images/relation_to.png b/issue_relations/public/images/relation_to.png
new file mode 100644
index 000000000..863ee547b
Binary files /dev/null and b/issue_relations/public/images/relation_to.png differ
diff --git a/issue_relations/test/fixtures/issue_relations.yml b/issue_relations/test/fixtures/issue_relations.yml
new file mode 100644
index 000000000..8794d28ae
--- /dev/null
+++ b/issue_relations/test/fixtures/issue_relations.yml
@@ -0,0 +1,5 @@
+# Read about fixtures at http://ar.rubyonrails.org/classes/Fixtures.html
+first:
+  id: 1
+another:
+  id: 2
diff --git a/issue_relations/test/unit/issue_relation_test.rb b/issue_relations/test/unit/issue_relation_test.rb
new file mode 100644
index 000000000..cf3fc93de
--- /dev/null
+++ b/issue_relations/test/unit/issue_relation_test.rb
@@ -0,0 +1,10 @@
+require File.dirname(__FILE__) + '/../test_helper'
+
+class IssueRelationTest < Test::Unit::TestCase
+  fixtures :issue_relations
+
+  # Replace this with your real tests.
+  def test_truth
+    assert true
+  end
+end