diff --git a/overview/3gpp-compliance-4g.rst b/overview/3gpp-compliance-4g.rst
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+4G - 3GPP Release Compliance
+============================
+
+MME Compliance
+--------------
+* Interface support
+* Functions supported
+* Functions not supported
+
+SPGW Compliance
+----------------
+* Interface support
+* Functions supported
+* Functions not supported
+
+
+PCRF Compliance
+----------------
+* Interface support
+* Functions supported
+* Functions not supported
+
+
+HSS Compliance
+---------------
+* Interface support
+* Functions supported
+* Functions not supported
+
+SD Core High Level Features supported
+-------------------------------------
+* UE Attach
+* UE Detach
+* Service Request
+* S1 Release
+* Downlink Data Notification
+* eNB s1 handover
+* eNB x2 handover
diff --git a/overview/3gpp-compliance-5g.rst b/overview/3gpp-compliance-5g.rst
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+5G - 3GPP Release Compliance
+============================
+
+SMF Compliance
+--------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+    * PDU Session Management
+* Functions supported
+* Service/Functions not supported
+    * PCF Notify
+
+AMF Compliance
+--------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+    * PDU Session Management
+* Functions supported
+* Service/Functions not supported
+    * PCF Notify
+
+
+NRF Compliance
+--------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+    * Network Function Registration/Deregistration
+* Functions supported
+* Service/Functions not supported
+    * Keepalive
+
+
+AUSF Compliance
+---------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+* Functions supported
+* Service/Functions not supported
+
+
+UDR Compliance
+--------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+* Functions supported
+* Service/Functions not supported
+
+
+UDM Compliance
+--------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+* Functions supported
+* Service/Functions not supported
+
+
+NSSF Compliance
+---------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+* Functions supported
+* Service/Functions not supported
+
+
+PCF Compliance
+--------------
+* Interface support
+    * SBI : Yes
+    * UNKNOWN: No
+* Service Supported
+* Functions supported
+* Service/Functions not supported
+
+
+SD Core High Level Features supported
+-------------------------------------
+
+High Level Features Not supported
+---------------------------------
+* URLLC
+* Location Based Services
diff --git a/overview/architecture.rst b/overview/architecture.rst
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+Architecture
+====================
+
+Architecture Diagram showing SD-Core box
+----------------------------------------
+- Diagram should show ROC interface, Prom interface, UPF interface, gNB/eNB interface
+
+Architecture Diagram of SD-Core 4G block
+----------------------------------------
+- show configPod, config distribution, MongoDB, Cassandra DB, SIMApp..., 4G network Functions
+
+Architecture Diagram of SD-Core 5G block
+----------------------------------------
+- show configPod, config distribution, MongoDB, SIMApp, 5G network functions
+
+Configuration Distribution Architecture
+---------------------------------------
+- how grpc, rest is used to distribute the configuration
+
diff --git a/overview/faq.rst b/overview/faq.rst
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+++ b/overview/faq.rst
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+FAQs
+====
diff --git a/overview/introduction.rst b/overview/introduction.rst
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--- /dev/null
+++ b/overview/introduction.rst
@@ -0,0 +1,5 @@
+Introduction
+====================
+* White paper link
+* Community wiki page or meeting details
+* Generic description of SD Core projects...