"IoT Architectural Reference Model"@en . "The IoT Architectural Reference Model (IoT-ARM) introduces top-down architectural principles and design guidelines. The IoT-ARM's functional view is organized in service layers (including communication, services, management, and security) on top of CPS."@en . . . . "The IoT Architectural Reference Model (IoT-ARM) introduces top-down architectural principles and design guidelines. The IoT-ARM's functional view is organized in service layers (including communication, services, management, and security) on top of CPS."@en .