diff --git a/README.md b/README.md
index dafdceb..ff667f8 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,9 @@ https://geo360live.tech/
 ### React WebApp (Render) Hosted Link:
 https://geo-360-1.onrender.com/
 
+### YouTube Video Link:
+https://www.youtube.com/watch?v=HyUKIbl_MlI
+
 # Geo-360
 
 
@@ -25,6 +28,50 @@ Geo-360 is a React-based application designed to provide users with interactive
 
 ![Screenshot 2567-04-27 at 17 15 52](https://github.com/smdthiranjaya/Geo-360/assets/37227365/ff3de2ce-1e39-40eb-b7cf-425e740eb201)
 
+## INTRODUCTION
+
+### Objective
+To develop a single-page application (SPA) and RESTful Web API that provide real-time weather updates (temperature, humidity, air pressure, wind speed) for Sri Lanka, enhancing the current weather information system.
+ 
+Scope
+• RESTful API: To serve real-time weather data.
+• SPA: Interactive map displaying live weather data.
+• Data Simulation: Use generated data for system testing.
+• Cloud Deployment: Ensure scalability and accessibility.
+• Security & Testing: Implement security measures and conduct thorough testing.
+
+## SYSTEM DESIGN AND ARCHITECTURE
+
+### Business Requirements
+
+Explores the need for a real-time weather mapping system to improve upon Sri Lanka’s Department of Meteorology’s existing three-hour update cycle, utilizing IoT for live data on temperature, humidity, and air pressure across the island.
+
+### REST API and SPA Design Overview
+
+Details the design principles of a RESTful API and a React-based Single Page Application (SPA) to meet the project's goals, including data flow and user interaction.
+
+### System Architecture and Deployment
+
+Describes the technical architecture encompassing the backend server on Heroku, database integration using Heroku’s PostgreSQL, frontend deployment on Azure, domain management, and use of GitHub Actions for CI/CD.
+
+### UML Sequence Diagram for Weather Data Processing
+
+<img width="894" alt="Screenshot 2567-04-27 at 17 56 36" src="https://github.com/smdthiranjaya/Geo-360/assets/37227365/94655c5d-4535-49ad-8151-36cd7172003d">
+
+### Deployment Diagram
+ 
+<img width="714" alt="Screenshot 2567-04-27 at 17 55 40" src="https://github.com/smdthiranjaya/Geo-360/assets/37227365/859b92c4-b1af-4f6a-ac52-6ebf4a39149b">
+
+## IMPLEMENTATION 
+
+### Weather REST API Details
+Provides specifics on the REST API development with Node.js, including the use of Express, CORS, and other packages for backend functionality, along with Swagger for API documentation.
+Live Map Single Page Application (SPA) Implementation
+Outlines the creation of the React SPA using packages like Leaflet for mapping, detailing how the application consumes the API and presents data dynamically.
+
+### Database and Cloud Integration
+Discusses the use of Heroku's PostgreSQL for data storage and management, and Azure Web App Service for SPA hosting, ensuring a scalable cloud-based environment.
+
 ## Getting Started
 
 These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.