diff --git a/README.md b/README.md
index dee6f14..bdeaced 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,27 @@
 # Backend
 
-## Description
+## Overview
+This is the backend for an IoT application built using NestJS. It interfaces with the Tuya IoT cloud platform to manage homes, rooms, devices, ...etc.
 This is the backend APIs project, developed with NestJS for Syncrow IOT Project. 
 
+## Database Model
+The database uses PostgreSQL and TypeORM. Below is an entity relationship diagram:
+
+The main entities are:
+
+User - Stores user account information
+Home - Represents a  home/space
+Room - Represents a  room/sub-space
+Device - Represents a connected device
+Product - Stores metadata about device products
+Other Entities - sessions, OTPs, etc.
+
+The entities have a one-to-many relationship - a user has multiple homes, a home has multiple rooms, and a room has multiple devices.
+
+## Architecture
+The application is deployed on Azure App Service using Docker containers. There are separate deployment slots for development, staging, and production environments.
+
+
 ## Installation
 First, ensure that you have Node.js `v20.11` or newer (LTS ONLY) installed on your system.
 
@@ -38,3 +57,6 @@ $ npm run test:e2e
 $ npm run test:cov
 ```
 
+## ERD Diagram
+
+![Syncrow ERD Digram](https://github.com/SyncrowIOT/backend/assets/83524184/94273a2b-625c-4a34-9cd4-fb14415ce884)
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