diff --git a/src/main/java/teetime/stage/basic/merger/Merger.java b/src/main/java/teetime/stage/basic/merger/Merger.java
index 1ed92585e37423346a2a4ee319f03d7872835c87..04cf447a28264b15cca4f0cd574955f544e7d4d4 100644
--- a/src/main/java/teetime/stage/basic/merger/Merger.java
+++ b/src/main/java/teetime/stage/basic/merger/Merger.java
@@ -29,6 +29,25 @@ import teetime.stage.basic.merger.strategy.RoundRobinStrategy;
  * This stage merges data from the input ports, by taking elements according to the chosen merge strategy and by putting them to the output port.
  * For its signal handling behavior see {@link #onSignal(ISignal, InputPort)}
  *
+ * <pre>
+ *   +--------------------------------+
+ *   |                                |
+ *   |                              +---+
+ *   |               +------------> |   |
+ *   |               |              +---+
+ *   |               |                |
+ * +---+             |              +---+
+ * |   | +-----------+------------> |   |
+ * +---+             |              +---+
+ *   |               |                |
+ *   |               |              +---+
+ *   |               +------------> |   |
+ *   |                              +---+
+ *   |                                |
+ *   +--------------------------------+
+ * </pre>
+ *
+ *
  * @author Christian Wulf, Nelson Tavares de Sousa
  *
  * @since 1.0