diff --git a/design/20200305-spec-v1alpha2-dependency-parampassing.md b/design/20200305-spec-v1alpha2-dependency-parampassing.md
index 29caf0d..e4dbb82 100644
--- a/design/20200305-spec-v1alpha2-dependency-parampassing.md
+++ b/design/20200305-spec-v1alpha2-dependency-parampassing.md
@@ -1,5 +1,9 @@
 # Component and Trait Dependency with Parameter Passing
 
+* Author: @wonderflow @hongchaodeng
+
+## Background
+
 In https://github.com/oam-dev/spec/issues/171, we have discussed our dependency stories and started to explore solutions.
 Now that we have designed and implemented mechanism to satisfy dependency requirements, we are proposing to add them into OAM spec.