diff --git a/INTRO b/INTRO
index c03a3866..357774be 100644
--- a/INTRO
+++ b/INTRO
@@ -69,4 +69,10 @@ Simple stuff done by Unix[notm]
       - clients just execute commands
    - dependencies via make?
 --------------------------------------------------------------------------------
+Implementation
 
+   "cdist-server"
+      -> called by cron?
+      -> no need to reimplement scheduling
+   "cdist-explore" (facter replacement)
+      -> running on the client