diff --git a/docs/images/automatic-backport.uml b/docs/images/automatic-backport.uml
new file mode 100644
--- /dev/null
+++ b/docs/images/automatic-backport.uml
@@ -0,0 +1,33 @@
+@startuml
+  participant JOB as "job"
+  participant REPO as "git-repository (~ phabricator forge)"
+  participant CI as "automatic-backport"
+  activate REPO
+  activate CI
+
+  activate JOB
+  JOB->REPO: pushes new tag on branch params.DESTINATION
+  deactivate JOB
+
+  REPO-->CI: triggers event to notify changes
+  CI->REPO: clones repository locally
+  CI-->CI: checks for backport to build
+  alt if backport to build
+    CI-->CI: prepares build environment (DEBEMAIL, DEBFULLNAME)
+    CI-->CI: merges new tag to the backport branch
+    CI-->CI: edits changelog for new release and commit
+    alt if not params.DRY_RUN
+      CI->REPO: pushes new tag on git repository
+    end
+    deactivate CI
+  end
+
+  legend left
+    | Input job parameter | description                                                                 |
+    | job                 | jenkins job modifying the git repository by tagging (e.g. gbp-buildpackage) |
+    | params.DESTINATION  | debian distribution to backport to (e.g. stretch-swh)                       |
+    | params.SOURCE       | debian distribution to backport from (e.g. unstable-swh)                    |
+    | params.DRY_RUN      | To actually push or not the new resulting tag                               |
+  endlegend
+
+@enduml