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  • Writer's pictureElisabeth Nebster

The Middleware Layer in IoT and Its Unifying Function for Smart Devices


But still, engineers managed to work wonders and build robust connections between IoT ecosystem components from various vendors. How do they do it? Skilled developers can offer different scenarios, one of which is IoT middleware usage.

Middleware IoT is a bond that combines various components of an IoT system, allowing it to function flawlessly.

We aim to show you the tangible business benefits of this approach, why companies opt for this way, and what perspective of further development it brings together with a well-designed and well-integrated IoT ecosystem. Scroll down to dive into details.

What is middleware in IoT?

It is software that performs the middle communication layer between different systems, components, devices, etc. The IoT middleware industry is predicted to be worth USD 15 billion in 2024, reaching USD 35.9 billion by 2029.

To make this approach clear for you, let's consider an example. During a digital rush hour, most companies prefer the complete software transformation. But it's not reasonable to simultaneously migrate to new systems.

Moreover, this approach might destroy your business. Therefore, business leaders and tech teams usually must gather legacy and new systems under one roof to ensure a step-by-step transformation journey.

But the case is they need to work together somehow to prevent downtime, decrease customer experience, etc. So, middleware is the thing that helps legacy and modern digital cultures find common ground.

It supports various systems to perform data exchange, respond to requests faster, cope with overload, etc.

IoT middleware platforms perform almost the same tasks but work with a vast Internet of Things devices and sensors from different vendors. It is an interface between smart devices that helps them support communication with each other.

It's a helpful approach since IoT vendors often don't consider what other gadgets their devices should connect to. Ultimately, this is up to each business that wants to build a custom IoT system.

Middleware often serves as one of the four pieces that collectively make up an IoT network. The remaining three components are IoT devices (hardware), business apps (software), and connections (WiFi, Bluetooth, or others).

The IoT world is a whole of connectivity protocols like MQTT, CoAP, and BLE, and their amount is growing exponentially. But they don't make the connection of IoT devices more accessible. So, IoT middleware is a solution here. Therefore, vendors like RedHat and Oracle provide cloud-based IoT middleware solutions to build proper connectivity faster.

IoT middleware examples

Middleware offers a variety of security measures for IoT devices, including managing access control and user authorization. It enables an IoT network to function on several cloud types.

Data gathering goals. IoT middleware platforms collect massive volumes of data through their sensors, and middleware facilitates interaction between IoT and data servers.

Device identification. To link up, devices must be recognizable, and with their identities and capabilities revealed, middleware facilitates this.

Core types of middleware IoT

Service-based solutions

IoT middleware uses the Service-Oriented Architecture (SOA) and helps engineers add various devices as services. It can be deployed on-premise or in the cloud, providing users with a simple toolkit to view the raw collected IoT data.

Meanwhile, this type is usually about limited functionalities regarding composition with other apps. Companies apply it to achieve better data protection and security.

Source: IoT Middleware: A Survey on Issues and Enabling Technologies

Cloud-based solutions

Cloud middleware in IoT allows users to apply a limited number of devices deployed, setting requirements for their type simultaneously. Meanwhile, it allows users to collect data easily due to pre-set scenarios.

Cloud-based architecture helps achieve interoperability by applying specific standards. The core con is the high dependence on the vendor - the middleware stops working when the provider ends the service.

Source: IoT Middleware: A Survey on Issues and Enabling Technologies

Actor-based solutions

This IoT middleware is efficient for open IoT architecture. Each smart device can work as a reusable actor distributed in the network. Actor-based middleware ensures better latency and scalability for large-scale connected IoT devices because of its ability to be deployed in all layers.

Source: IoT Middleware: A Survey on Issues and Enabling Technologies

Edge computing solutions

This middleware IoT handles data processing straight at the network's border, close to where the information comes from the IoT devices (i.e., IoT devices), instead of depending entirely on cloud servers.

This strategy decreases delay, protects network capacity, and increases reaction times. This happens because data processing operations are brought closer to the data source. Edge computing middleware is critical for real-time applications like autonomous cars, automated manufacturing, and smart cities, which demand instantaneous data processing and response.

Top business benefits IoT middleware brings to companies

Reduce manual work

IoT middleware allows engineers to build integration points easily. One proven IoT middleware architecture can replace dozens of unnecessary connections and tools requiring developer effort.

Better connectivity

This software ensures seamless integrations between IoT components, systems, and devices. It helps to create an elegant and clear architecture that provides smooth data traffic and uninterrupted operation of the IoT ecosystem.

Faster Time-to-Market

Since IoT middleware allows cutting time when working on integrations (one of the most challenging parts of the IoT software development cycle), it helps businesses build software in a fraction of the time and deploy cutting-edge solutions on a tight schedule.

Lower Total Cost of Ownership

IoT middleware takes care of overload and most communication issues between devices. Therefore it helps to decrease the risk of failure, prevents downtime, and allows companies to reduce TCO.

Data management and analytics

With the massive amounts of data created by IoT gadgets, middleware is critical for handling and analyzing them. It can preprocess, store, and evaluate information gathered from various sources, delivering actionable insights to enterprises.

This feature enables businesses to optimize operations, strengthen decision-making, and create predictive maintenance programs. Immediate data and analytics processing by IoT middleware platforms can result in quicker and more efficient operations. It will raise productivity and cost savings as a result.


The middleware layer in IoT is a base for integrating businesses with IoT components. As a result, it drives strategic outcomes and advantages despite the complexities often involved.

Want to connect various components of your IoT ecosystem smoothly? Contact the sales team. Our experts will advise you on a reasonable way to achieve results with the code platform.


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