DigiKey-emag-IoT-Vol-2

Matter (formerly Project Connected Home over IP, or Project CHIP) is a new, royalty-free connectivity standard that promises to increase the compatibility among smart home products

Matter was founded in 2019 by the Connectivity Standards Alliance (CSA) with the goal of simplifying development for manufacturers and increasing compatibility for consumers It is built around members’ shared belief that smart home devices should be secure, reliable, and seamless to use. Matter has the potential to transform the Internet of Things (IoT) from a plethora of disconnected devices to an interoperable, ‘plug-and-play’ network. How does Matter work? To fully grasp the implications of Matter on the IoT, specifically smart home technologies and the working principle of this novel IoT standard, this section begins by exploring the several layers of the Open System Interconnection (OSI) reference model. The OSI reference model describes the tasks and conventions that network systems require to communicate with one another [1] . The specifications

Layer 7 - Application

Layer 6 - Presentation

Layer 5 - Session

Layer 4 - Transport

Layer 3 - Network

Layer 2 - Data Link

Layer 1 - Physical

Figure 1 presents the seven layers of the OSI reference model. The application layer, which doubles as the highest in the OSI model, is the closest to the end user. In other words, this layer allows users to directly interact with the software application that initiates communication between client and server. This first layer offers several communication functions, including file sharing, database access, and message handling through common protocols such as File Transfer Protocol (FTP), Hypertext Transfer Protocol (HTTP), Trivial File Transfer Protocol (TFTP), Server Figure 1. The seven layers of the OSI Reference Model

of the model includes assisting vendors and communications software developers to produce interoperable network systems. The structure of the OSI reference model relies on a widely accepted technique known as layering. This technique partitions communication functions into a vertical set of layers, with each performing a related set of functions while enriching and utilising the services of the next layer below. The ITU-T X.200 standards detail seven specific layers for the OSI reference model, including the physical, data link, network, transport, session, presentation, and application layers, in ascending order [2] .

of this conceptual model remain available for public

consumption, hence the term ‘open system’. The key objective