diff --git a/labmodule01/README-GDA.md b/labmodule01/README-GDA.md
index f8b061b..1c9739e 100644
--- a/labmodule01/README-GDA.md
+++ b/labmodule01/README-GDA.md
@@ -9,14 +9,16 @@ Be sure to implement all the PIOT-GDA-* issues (requirements) listed at [PIOT-IN
 NOTE: Include two full paragraphs describing your implementation approach by answering the questions listed below.
 
 What does your implementation do? 
+My implementation create a environment to run the GDA app succesfully. The implementation of the Gateway Device Application (GDA) in Java Eclipse serves as a pivotal component within the gateway device, responsible for managing data, analytics, and configuration settings.
 
 How does your implementation work?
+First of all, I have setup the Java environment in Linux (Debian-based, such as Ubuntu 20.04LTS). Then, according to the Chapter 1 of Programming the Internet of Things, I have cloned the code repository for GDA app. After that I verified all sample code, unit / integration tests, and folder structure is the same as the online repo and created branch labmodule01. I worked from the labmodule01 branch then I have merge it with the master branch and push it to the remote repo.
 
 ### Code Repository and Branch
 
 NOTE: Be sure to include the branch (e.g. https://github.com/programming-the-iot/python-components/tree/alpha001).
 
-URL: 
+URL: https://github.com/ENGR5520W24/assign-1-iot-gda-gp-01.git
 
 ### UML Design Diagram(s)