Update examples.

Author: odincodeshen

content/learning-paths/automotive/openadkit2_virtualplatform/1_functional_safety.md

@@ -61,6 +61,18 @@ For more details, you can check this video: [What is Functional Safety?](https:/
 
 ### Safety Island
 
+In automotive systems, a **General ECU (Electronic Control Unit)** typically runs non-critical tasks such as infotainment or navigation, whereas a **Safety Island** is dedicated to executing safety-critical control logic (e.g., braking, steering) with strong isolation, redundancy, and determinism.
+
+| Feature               | General ECU                | Safety Island                        |
+|------------------------|----------------------------|--------------------------------------|
+| Purpose               | Comfort / non-safety logic | Safety-critical decision making      |
+| OS/Runtime            | Linux, Android             | RTOS, Hypervisor, or bare-metal      |
+| Isolation             | Soft partitioning          | Hard isolation (hardware-enforced)   |
+| Functional Safety Req | None to moderate           | ISO 26262 ASIL-B to ASIL-D compliant |
+| Fault Handling        | Best-effort recovery       | Deterministic safe-state response    |
+
+This contrast highlights why safety-focused software needs a dedicated hardware domain with certified execution behavior.
+
 **Safety Island** is an independent safety subsystem separate from the main processor. It is responsible for monitoring and managing system safety. If the main processor fails or becomes inoperable, Safety Island can take over critical safety functions such as **deceleration, stopping, and fault handling** to prevent catastrophic system failures.
 
 Key Functions of Safety Island
@@ -74,6 +86,8 @@ Key Functions of Safety Island
    - Industrial Equipment → Emergency power cutoff or speed reduction
 
 
+
+
 ### Integration of Safety Island and Functional Safety
 
 Safety Island plays a critical role in Functional Safety by ensuring that the system can handle high-risk scenarios and minimize catastrophic failures.

content/learning-paths/automotive/openadkit2_virtualplatform/2_DataDistributionService.md

@@ -35,6 +35,7 @@ For instance, a LiDAR sensor generates millions of data points per second, which
 
 This real-time data flow must occur within milliseconds to enable safe autonomous driving. DDS ensures minimal transmission delay, enabling rapid response to dynamic road conditions. In emergency scenarios, such as detecting a pedestrian or sudden braking by a nearby vehicle, DDS facilitates instant data propagation, allowing the system to take immediate corrective action.
 
+For example: [Autoware](https://www.autoware.org/)—an open-source autonomous driving software stack—uses DDS to handle high-throughput communication across its modules. For example, the **Perception** stack publishes detected objects from LiDAR and camera sensors to a shared topic, which is then consumed by the **Planning** module in real-time. Using DDS allows each subsystem to scale independently while preserving low-latency and deterministic communication.
 
 ### Publish-Subscribe Model and Data Transmission
 Traditional client-server communication requires a centralized server to manage data exchange. This architecture introduces several drawbacks, including increased latency and network congestion, which can be problematic in real-time automotive applications.

content/learning-paths/automotive/openadkit2_virtualplatform/3_aws_setup.md

@@ -24,6 +24,9 @@ This architecture brings several practical benefits:
 
 - Supports modular development and CI/CD: Teams can develop, test, and iterate on components independently, enabling better DevOps practices for autonomous systems.
 
+
+!!! Consider a simple network diagram showing the two EC2s, DDS, and container roles. !!!
+
 ### Networking Setting 
 
 First, launch two Arm instances (either cloud instances or on-premise servers).