Update main OAG product page

Author: mgere-oracle

security/identity-and-access-management/oracle-access-governance/OAG_Use_Cases.png

@@ -2,7 +2,11 @@
 
 Access Governance is a cloud native identity governance and administration (IGA) service that provides enterprisewide visibility to govern access to cloud and on-premises environments. With an intuitive user experience, dynamic access control, and a prescriptive analytics-driven access review process, it helps customers automate access provisioning, get insights into access permission and cloud infrastructure policy reviews, identify anomalies, and remediate security risks.
 
-Reviewed: 10.02.2025
+![OAG Use Case](OAG_Use_Cases.png)
+
+Oracle Access Governance enables integration with a wide range of authoritative sources (trusted source of identities and their attributes) and managed systems (applications containing account and permissions). For the most common integration patterns, please see the [Reusable Assets Overview](#Reusable Assets Overview) section below.
+
+Reviewed: 20.03.2025
 
 # Useful Links
 
@@ -29,7 +33,9 @@ Reviewed: 10.02.2025
 
 **Note:** The below assets are provided for reference purposes only and for use in demos/PoC activities where required.
 
-- [DBAT OS Account Sample integration for OAG](dbat-os-accounts-sample/README.md)
+| No.   | Business Use Case | Components | Use Case Scope | Reusable Asset(s) |
+|-------|-------------------|------------|----------------|-------------------|
+| 4 | Access Governance for Active Directory with user, access  management & who has access to what  of users, groups, permissions. | - OAG- HCM, EBS - Active Directory | - Authoritative Sources: Fusion HCM & EBS - Managed System: Active directory - On-boarding and Mover - Self-service request, approval workflows - Access review/re-certification and close loop remediation | - [DBAT OS Account Sample integration for OAG](dbat-os-accounts-sample/README.md) - [DBAT integration tutorial for OAG](https://www.youtube.com/watch?v=SNyyI0vO_yw) |
 
 # License