diff --git a/README.md b/README.md
index ad8c202..2ffc915 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # Backend internal interview (rust) - basic-fixed  
 
+[!Tip]
+> Use [Improve branch](/NewRelic/be-technical-interview-rust/src/branch/improved) as a full refactoring for <u>better quality, maintenance and readability</u>. (Structs, implementaitions, settings for multiple inputs, etc).
+
 > [!NOTE]
 > Code simply **works as expected** trying to be preserve initial approach and not too much disruptive changes.<br>
 > It is able to **process multiple metrics in parallel** (input.txt and input_2.txt). <br>
@@ -22,3 +25,6 @@ There are several branches developed as proposal:
 
 - [Improve one](/NewRelic/be-technical-interview-rust/src/branch/improved)
 
+- [x]  Define a basic model, easily to extend and modify. **Abstraction / Generic**.
+- [x]  Structs and implementations to specific metricis traitments. **Modular appoach**.
+- [x]  Settings and configuration for interactive and non interactive processing (batch mode) **Customize on context**.