diff --git a/README.md b/README.md
index 2e5e96c..91bc793 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,26 @@
+# Purpose of this componenet
+
+The purpose of oc-deploy, is to deploy all the OC components over a Kubernetes cluster.
+
+An OpenCloud deployment is composed of the following layers: 
+
+--------------------------
+|  OpenCloud components  | <-- TODO
+--------------------------
+|   KubernetesCluster    | <-- TODO
+-------------------------- 
+|    IaaS (VMs, LAN)     | <-- pre-requisite
+--------------------------
+|HW (network and servers)| <-- pre-requisite
+--------------------------
+
+
+It thus contains a first optional installation layer which deploys the Kubernetes nodes (control plane(s) and workers) above an existing infrastructure (Iaas).
+
+Then the second installation layer uses Helm charts to deploy and configure all the OC components.
+
+This documentation will be updated with the needed command and/or requirements to properly execute the installation.
+
 # Deploy cluster
 ## For dev in Docker
 Install brew