GITBOOK-867: Architecture diagrams has explained with details

use-1/source-code/sunbird-ed-architecture.md

@@ -6,21 +6,46 @@ Below architecture diagram explains L0 architectural view of Sunbird-ED
 
 <figure><img src="../../.gitbook/assets/Screenshot 2023-08-04 at 2.25.36 PM.png" alt=""><figcaption></figcaption></figure>
 
-### Client Apps
+### Learning Apps
+
+These are the client facing applications where users(Admin, Creators & Consumers) can drive some capabilities.
+
+* **Sunbird-Portal UI**\
+  The Sunbird portal is the browser-based interface for the Sunbird application stack. It provides a web app through which all functionality of Sunbird can be accessed
+* **Sunbird-Mobile-App**\
+  The Sunbird Mobile app provides mobility to its feature-rich learning platform. It provides learners with the flexibility to learn anywhere, anytime.
+* **Sunbird-Desktop**\
+  It is powered by Sunbird-Portal itself. The same code-based being used for offline access of portal application.&#x20;
+* **Sunbird-CoKreat (part of Sunbird-CoKreat building block)**\
+  [**https://cokreat.sunbird.org/learn/readme#what-is-sunbird-cokreat**](https://cokreat.sunbird.org/learn/readme#what-is-sunbird-cokreat)
+
 
-TBU
 
 ### Front-end Libraries
 
-TBU
+Please refer the below for more details of front-end libraries.
+
+[independent-libraries](../independent-libraries/ "mention")
 
 ### API Player
 
-TBU
+* Sunbird-Portal (API service)\
+  Sunbird portal is packaged with Client & Server side applications. The server slide application(NodeJS) will get build & deployed independently which will act as proxy service for Sunird-Portal(UI) application.
+* Sunbird-Creation-Portal (API service)\
+  Sunbird creation portal is also packaged with Client & Server side applications. The server slide application(NodeJS) will get build & deployed independently which will act as proxy service for Sunird-Creation-Portal(UI) application.
+* Form service
+
+[form-service](workflows/form-service/ "mention")
+
+* Contribute(Program) service
+
+{% embed url="https://cokreat.sunbird.org/contribute/contribution-service" %}
+
+
 
 ### Dependant Sunbird BB's
 
-TBU
+[dependencies.md](../../use/learn-more/dependencies.md "mention")