Creating a Data Flow Diagram of the Home IoT System

You have completed your asset inventories in previous Packet Tracers. You have also completed diagrams of the physical network, including the connections between devices and the types of protocols in use. Now you need to create a high level data flow diagram. This process is adapted from the Microsoft IoT Security Architecture.

Follow the model data flow diagram and process provided in the course content and do the following:

a$.$ Think about the possible zones in the system. Create a zone for the sensors and actuators, the communication infrastructure device, and the cloud application. Think about the data stores and processes that could exist as cloud services. Connect these zones with arrows to indicate the type of communication between them.

b$.$ What external entities access the system? Add the entities and lines to connect them to the zones that they have access to and the system they access. Think of the types of applications and protocols that each use, as well as the functions described in previous Packet Tracers.

c$.$Draw trust boundaries. Follow the definition of trust boundaries provided in the course.