Merge pull request #93644 from KishorIoT/tutorial-ddc-new

new ddc images and minor content changes

Author: tiburd

articles/iot-central/retail/media/tutorial-iot-central-ddc/ddc-camera.png

@@ -12,8 +12,6 @@ ms.date: 10/20/2019
 
 This tutorial shows you how to get started by deploying an IoT Central **digital distribution center** application template. You will learn how to deploy the template, what is included out of the box, and what you might want to do next.
 
-## Details
-
 In this tutorial, you learn how to, 
 * Create digital distribution center application 
 * Walk through the application 
@@ -42,53 +40,36 @@ You can create application using following steps
 > [!div class="mx-imgBorder"]
 > ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-create.png)
 
-## Walk through the application 
-
-## Dashboard 
+## Walk through the application dashboard 
 
 After successfully deploying the app template, your default dashboard is a distribution center operator focused portal. Northwind Trader is a fictitious distribution center solution provider managing conveyor systems. 
 
-In this dashboard, you will see one edge gateway and one camera acting as an IoT device. Gateway is providing telemetry about packages such as valid, invalid, unidentified, and size along with associated device twin properties. All downstream commands are executed at IoT devices, such as a camera. This dashboard is pre-configured to showcase the critical distribution center device operations activity.
+In this dashboard, you will see one gateway and one camera acting as an IoT device. Gateway is providing telemetry about packages such as valid, invalid, unidentified, and size along with associated device twin properties. All downstream commands are executed at IoT devices, such as a camera. This dashboard is pre-configured to showcase the critical distribution center device operations activity.
 
-The dashboard is logically organized to show the device management capabilities of the Azure IoT Edge gateway and IoT device.  
-   * You can perform edge gateway command & control tasks
+The dashboard is logically organized to show the device management capabilities of the Azure IoT gateway and IoT device.  
+   * You can perform gateway command & control tasks
    * Manage all cameras that are part of the solution. 
 
 > [!div class="mx-imgBorder"]
 > ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-dashboard.png)
 
 ## Device Template
 
-Click on the **Device templates** tab, and you will see the distinct device templates for Azure IoT Edge & camera. 
-
-Azure IoT Edge gateway device template represents a blueprint that defines the characteristics and behavior of an edge gateway device. Some of the components of an edge device are,
-   * Deployment manifest
-   * Relationship with downstream devices
-   * Software modules
-   * Modules properties & commands 
-
-Deployment manifest has the list of software modules that will run on the Azure IoT Edge device & module twins configured with their desired properties. Using deployment manifest that is part of the device template, Azure IoT Edge run time knows which modules to install and how to configure them to work together.
+Click on the Device templates tab, and you will see the gateway capability model. A capability model is structured around two different interfaces **Camera** and **Digital Distribution Gateway**
 
 > [!div class="mx-imgBorder"]
 > ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-devicetemplate1.png)
 
-In this device template here, you can see module device capability models are generated from deployment manifest. 
+**Camera** - This interface organizes all the camera-specific command capabilities 
 
 > [!div class="mx-imgBorder"]
-> ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-devicetemplate2.png)
-
-Here you can add downstream device relations, cloud property, create views along customize module and device capabilities.
-
-> [!div class="mx-imgBorder"]
-> ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-moduletemplate.png)
+> ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-camera.png)
 
-Click on the **Device** tab and choose the **ddcgateway** device that is associated with Digital Distribution Center Azure IoT Edge. Here you will see the custom edge modules & downstream camera that is part device relationship. IoT Edge modules are the smallest computation unit, and it can contain Azure services (such as Azure Stream Analytics, AI modules) or your solution-specific code.
+**Digital Distribution Gateway** - This interface represents all the telemetry coming from camera, cloud defined device twin properties and gateway info.
 
 > [!div class="mx-imgBorder"]
-> ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-modules.png)
+> ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-devicetemplate1.png)
 
-> [!div class="mx-imgBorder"]
-> ![Digital Distribution Center](./media/tutorial-iot-central-ddc/ddc-downstream.png)
 
 ## Gateway Commands
 This interface organizes all the gateway command capabilities
@@ -98,6 +79,7 @@ This interface organizes all the gateway command capabilities
 
 ## Rules
 Select the rules tab to see two different rules that exist in this application template. These rules are configured to email notifications to the operators for further investigations.
+
  **Too many invalid packages alert** - This rule is triggered when the camera detects a high number of invalid packages flowing through the conveyor system.
 
 **Large package** - This rule will trigger if the camera detects huge package that cannot be inspected for the quality.