diff --git a/src/PipeChainAwareInterface.php b/src/PipeChainAwareInterface.php
new file mode 100644
index 0000000..40bf8e9
--- /dev/null
+++ b/src/PipeChainAwareInterface.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * This file is part of the PIPECHAIN Project.
+ *
+ * (c)2017 Matthias Kaschubowski
+ *
+ * This code is licensed under the MIT license,
+ * a copy of the license is stored at the project root.
+ */
+
+namespace PipeChain;
+
+
+interface PipeChainAwareInterface
+{
+    /**
+     * appends the provided pipe to the end of the chain of the used pipeline.
+     *
+     * @param PipeChainInterface $pipeline
+     * @return PipeChainInterface
+     */
+    public function chain(PipeChainInterface $pipeline): PipeChainInterface;
+}
\ No newline at end of file