A System Architectural Diagram is an essential tool when planning out any engineering project related to the Internet of Things (IoT). This diagram enables designers to specify, visualize and model all components required for their system in an organized way. It also gives them a detailed view of the connections between hardware, software, networks, and other computing machines. With the help of such diagrams, engineers can easily identify potential problems before committing resources to their projects. Similar design templates are readily available at EdrawMax. Users can easily access template collections at EdrawMax and download them for personal and professional usage.